Bitmain Antminer S7 ASIC Miner Tested at 700Mhz 4.5TH/s +/- 10% @ .29W/GH 28nm Bitcoin BTC BCH LCC

Sale!
bitmain antminer s7
3.35 out of 5 based on 37 customer ratings
(64 customer reviews)

$699.00 $84.00

Bitmain Antminer S7 fully tested hashing at 100% 4.5TH/s. Antminer S7 ~4.5TH/s @ .29W/GH 28nm ASIC Bitcoin Miner.

6 in stock

Warranty: 30 Days

SKU: S7BTCH8-700MHZ-4.5 Categories: , , Tags: , ,

Product Description

Bitmain Antminer S7 

Tested at 700Mhz ~4.5TH/s +/-10%

Due to the volatility of the cryptocurrency market, All sales are final.

S7 Specifications:

  • Hash Rate: 4.5 TH/s ±10%
  • Power Consumption: 1293W ±10%
  • Power Efficiency: 0.29 W/GH ±10%
  • Requires 10x 6 pin pci-e connectors
  • Power Supply required and sold seperately
  • Dimensions: 301mm(L)*123mm(W)*155mm(H)
  • Cooling: 2x 12038 fan
  • Operating Temperature: 0 °C to 40 °C
  • Network Connection: Ethernet
  • Default Frequency: 700M
  • Power Supply required and sold separately

Please note the following:

1. Power consumption figures will vary with your PSUs efficiency, the ambient operating temperature and the accuracy of the power meter. Figures provided are at the wall, with AC/DC 93% efficiency, and 25°C ambient temp.

2. Required power supply unit is not included. Each hashing board has 3 PCIe power ports; all PCIe ports must receive power. Do not connect more than one PSU to the same hashing board, unless you are using a dual fault protection kit.

3. Separate power supply to control board: there is one additional 6pin PCI-e connector on the IO board which must be connected to the PSU to receive power. If you use different PSU for hash boards and control board, please make sure to power the hash boards first.

Additional Information

Weight 15 lbs
Condition

refurbished

Manufacturer

Bitmain

Got something to discuss?


Customer
Edward
1 year 5 months ago

What is the return policy or warranty for this item? Thank you.

Support
10 months 7 days ago

30days replacement only. They are no return accepted for refund

Customer
BigRunner
10 months 7 days ago

Are these items new or used?

Support
10 months 7 days ago

In this industry we have a saying … “There is no such thing as a new miner!” These are used. The units are parted, cleaned, tested, serialized and reassembled with new fans. They ship in like new condition.

Customer
rkhadarian
10 months 3 days ago

Are these 2 fan miners or single fan ?

Support
10 months 2 days ago

Two fans

Customer
AaronD
10 months 2 days ago

I keep trying to order 1 S7 but when I get to check out it says not enough stock to fill my order. Are they out of stock?

Support
10 months 2 days ago

Stock is accurate at 101pcs. Perhaps you are trying to pay with Paypal which we do not accept for miners

Support
10 months 2 days ago

I see what you mean ! .. Working on it. Give me 20mins

Customer
Gdavis85
10 months 2 days ago

It says 101 in stock but I can not check out? Says none in stock??

Support
10 months 2 days ago

Should be good now

Customer
dabomb6608
10 months 1 day ago

Have been trying to get in contact with a sales rep over the phone since yesterday. Wanting to complete a order on these. Can you have someone email or phone me ASAP Joseph? Trying to take care of this purchase before I leave for vacation.

Support
10 months 1 day ago

Sorry — Were are not answering any calls this week or will be on the phone all day. We focus our effort on processing our customers order. I will send you an email .. Reply with phone and Albert will give you a call.

Customer
abeianlim
10 months 1 day ago

Hey joseph, will you ever get Antminer S9’s?

Support
10 months 1 day ago

Hi, we have noting currently booked. The S9 are a hot commodity these days. We work with some of the largest Data center in the nation, i’m sure we will process a batch soon enough

Customer
elichartnett
8 months 25 days ago

Would love to see this happen!

Customer
oaleisa
10 months 1 day ago

Will this item be back in stock on December 20th or will it be earlier or later

Support
10 months 1 day ago

We are hoping sooner. However, in this current market anything is possible until we have the unit in our warehouse.

Customer
dzap92
10 months 22 hours ago
Support
10 months 18 hours ago

Yes you can. Here that same kit combine with all you need. Please remember we do not include power cord. Here a good old Desktop computer cord would work just fine https://www.parallelminer.com/product/antminer-s9-power-supply-80plus/

Customer
dzap92
10 months 18 hours ago

Ok, great. Another question, I ordered 2 S7s in separate orders yesterday and they were both canceled within 2 hours of placing them. Would you be able to tell me why this is? Thanks again

Support
10 months 10 hours ago

Our system work in sync with Coinpayment. If miners confirmation cannot be confirm within a certain amount of time the order get canceled. However, as soon as we received 6 confirmations the order will automaticaly change to processing. If it does not then your payment was not received

Customer
georgesmiller
9 months 27 days ago

Hi Joseph – do the S7’s still come with a 30 day warranty? Thanks

Support
9 months 27 days ago

Hi, yes they do

Customer
mahrensnj
9 months 25 days ago

will these still be available tomorrow, 12/20? what is shipping cost to states?

Support
9 months 25 days ago

We have relist with shopping date of Dec 28th. Our cost increased is reflected in the price

Customer
mahrensnj
9 months 25 days ago

oh i saw that update for the Avalon6 not this unit

Customer
dgwayne1
9 months 25 days ago

I would also like to know if it will be in stock on the 20th. Holding out on the avalon 6 till i know the s7 will be available

Support
9 months 25 days ago

We’ve just received a shipment of both units S7 and A6. Our process is tedious and time consuming. We’ve have limited staff who knows how to re certified these units. We are working on the A6 now to be ready to ship next week. The S7’s will be on sale Monday the 25th for shipping on the 2th of Jan.

Customer
ronk174
9 months 24 days ago

Will you have some info on the price change if any on the S7 so I can make an informed decision on which unit gives me the best hash/per $?

Support
9 months 24 days ago

Getting them in this market was not cheap. Price will increase by $100 to $175 depending on the BTC/BCH price at that time

Customer
ronk174
9 months 24 days ago

Would these be the 5 TH units or the 4 TH units? Thanks!

Customer
BossBUCKLES
9 months 24 days ago

When will these be back in stock? It says it’s suppose to be back in stock today are they sold out again already?

Support
9 months 24 days ago

We have them in stock now. Our staff processing the unit. We will have them online Dec 25th

Customer
Gdavis85
9 months 23 days ago

I just got my miner today its missing the white cables 18pin ribbons on the top x3 were they not part of the deal?

Support
9 months 23 days ago

Rrrr. Yes of course they should of came with it! Some poeple will be in trouble tomorrow, your the second customer. We will overnight them to you FEDEX with PI Saturday delivery. Sorry about the trouble

Customer
mahrensnj
9 months 20 days ago

will this still be made available today? 12/25

Customer
slickster100
9 months 19 days ago

Was wondering the same thing? I was hoping I didn’t miss it!

Customer
georgesmiller
9 months 19 days ago

I paid through coinpayment and then my order shows canceled before the BTC transaction is confirmed what happens?

Customer
eadietz
9 months 19 days ago

I’m in the same boat…

Support
9 months 19 days ago

Transaction are confirmed after 6 confirmation. In the mean time our system will show the order cancel to prevent our staff from processing the order. The order will be automatically updated once the 6 confirmation are completed

Support
9 months 19 days ago

Transaction are confirmed after 6 confirmation. In the mean time our system will show the order cancel to prevent our staff from processing the order. The order will be automatically updated once the 6 confirmation are completed

Customer
mahrensnj
9 months 19 days ago

yes my payment went through but didnt receive any kind of confirmation..

Customer
info17
9 months 19 days ago

Hi, I’m trying to order an s7, it says there’s 21 in stock then I get an alert that says there aren’t enough in stock. Could you please let me know how I can place this order?
Thanks

Support
9 months 18 days ago

They are pending BTC payments for orders. System will release stock if payment are not confirmed.

Customer
khybs
9 months 17 days ago

Will any more become available. Can we do local pickup?

Support
9 months 17 days ago

We are processing outstanding orders and did not want to over sell. By Jan 4 we should have any where from 30 to 100 units available. Yes pickup is possible but order must be prepaid in advance

Customer
r.lopes95
9 months 14 days ago

hey guys is there anywhere i can pre order for the next batch to arrive??
i don’t want to miss out is all

Customer
ryonlane
9 months 10 days ago

Would love to be alerted when these are available for purchase again. Thank you!

Customer
georgesmiller
9 months 6 days ago

Did the 5.47Th/s release yet?

Customer
kokibean
9 months 6 days ago

Hello, we are trying to buy three more S7 4.73TH/s but it says “Sorry, we do not have enough in stock to fulfill your order right now. Please try again in 60 minutes or edit your cart and try again. We apologize for any inconvenience caused. It’s done this to me for 3 hours now.

Customer
dgwayne1
9 months 5 days ago

Seriously guys. I bought 2 of these S7 from yall and they both STRUGGLE to get to 4.0TH/s. SOOOO unstable. hashes at 1.5 to 3.5 TH/s most of the time. It is hard to believe yall go through them and make sure they run properly when both of them even had different frequencies!

Support
9 months 5 days ago

As we discussed in the e-mails, it does seem like the Chinese mining pool information was the issue. Always feel free to reach out for trouble shooting via the Contacts page!

Customer
dgwayne1
9 months 5 days ago

Thank you for such a fast reply. I started having the issue again after running for a bit longer sent you an email. Once again THANK YOU so much for the quickest reply ive ever had when dealing with tech support!

Customer
cryptic
8 months 29 days ago

What frequency did you test this miner at? Did you use a power supply other than the bitmain? I have a board that keeps going zombie.

Support
8 months 29 days ago

We don’t use Bitmain power supply. We process these unit with our Delta 2400watt PSU. Usually our tech will use 650mHz or 700Mhz. Request warranty on our contact form for replacement if you feel it is defective

Customer
elichartnett
8 months 27 days ago

Wish this was in stock. They had 11 in stock today and within an hour they were gone!

Support
8 months 27 days ago

We will relist more next week

Guest
kryptokupp
8 months 23 days ago

Can you please give us a heads up when you are going to put more up?

Thanks

Customer
peashooter
8 months 6 days ago

I bought one and it died in 45 days. I am seeing if the will sell me discounted replacement boards. THESE ARE USED AND WILL FAIL BEFORE YOU MAKE YOUR MONEY BACK. I will change my review if they work with me. BUYER BEWARE!!

Customer
samsheffler
6 months 18 days ago

Had to return control board for replacement due to abnormally low hashing… since the replacement doesn’t clock over 3900gh/s (occasionally 4000 and change).

Customer
samsheffler
6 months 17 days ago

Machine I got doesn’t go past 3900gh/s. Touches 4k gh/s occasionally. This is after you replaced the control board.

Support
6 months 17 days ago

Hi Sam
If the unit descriptions stated tested at 700Mhz, it was. We also offered unit with heading tested at 600 or 650 with lower hashing rate. If you purchased a 700Mhz unit and experience low hash rate first check the power supply. It should be a minimum of 1500watt. If this the case login to your account and request an RMA

Support
8 months 20 days ago

Please check your spam box because I replied the same day with basic troubleshooting steps. I also included a work cell phone number to call for real-time tech support. I will also be letting our senior tech support guy know to get in touch with you to resolve this issue.

Support
8 months 20 days ago

Please request RMA from our contact form. We do not respond to email send to xxx@parallelminer.com. We will send you a PREPAID label

Customer
kokibean
8 months 20 days ago

I should have known to check the spam folder, I apologize. The email was sent there. I am replying right away so customers see that you guys did respond same day. I am going to try the provided troubleshooting steps now.

 

64 reviews for Bitmain Antminer S7 ASIC Miner Tested at...

  1. :

    Some of the S7 we had available were built at factory with only (1) fan. If the unit is working at expected temps then your S7 is one of them.

  2. 3 out of 5

    (verified owner):

    update: Fan situation explained and resolved.

  3. 5 out of 5

    :

    Will they still be back in stock December 25th?,and will there be the same quantity price, because id like to buy 4 for 800 for sure

    • :

      Yes they will. Price will be the same

  4. 5 out of 5

    :

    can i pay for these through paypal or must be crypto? and do u have a estimated time of the sale?

    • :

      Will be happy to replace the unit for you … Please request an RMA using our contact form. We wil send you a prepaid return label for a replacement

  5. 1 out of 5

    (verified owner):

    I bought 3 S7 and 1 has bad hashing boards

    • :

      Will be happy to replace the unit for you … Please request an RMA using our contact form. We wil send you a prepaid return label for a replacement

  6. 5 out of 5

    (verified owner):

    Works great excellent service from staff

  7. 1 out of 5

    (verified owner):

    Loose middle board and doesn’t power on. Power supply and source are both working fine. Requested a refund and will update on how it goes.

    • :

      All sale on miner are final – NO REFUND. However you do have a 30days warranty. Please request an RMA using our contact form, we will send you a return label. Note, if any warranty label were broken the unit will be return right back to you. Once received we will check the unit. We will then 1) send you a replacement if the unit is found defective or 2) If unit found to be working you will have to pay shipping to get it back

    • :

      Boards on the S7 and S9 are suspended on track within the case and are normally lose.

  8. 5 out of 5

    (verified owner):

    I ordered one of these from you and I was nervous after sending my bitcoin, because you sent a confirmation of the order, but never sent me a confirmation that the device was actually shipped. Then a few days later it showed up at my door. The product worked as advertised.

    So I just ordered four more of these and the transaction was confirmed with coinpayments. But I still don’t have an email from you guys even confirming the order.

    Good company, but you all need work on the communication. I know you’re swamped but sheesh hire another guy! Seriously though, thanks for selling a great product at a fair price.

    Ryan

    • :

      Hi Ryan, order 14289 is confirmed and payment was completed thank you. Hiring staff is easy .. Training them to our standard is not but we are working on it

  9. 5 out of 5

    (verified owner):

    Yeah brother I heard that. When will more be in stock? And what’s the word on the s9 units? Thanks!

    • :

      Open order on S7 will be filled this week and next week. Reaming stock will then be offer. I expect at least 100pcs will be available by end of next week

  10. 5 out of 5

    (verified owner):

    Hello,

    I made 2 orders with my email adress in this account but only 1 is displayed in the “orders” section. Are my 2 orders ok and my 2 payments received ? thanks in advance for your answer.

    • :

      14286 & 14280 both received and fully paid. Thank you

  11. 5 out of 5

    :

    When will you guys have more in stock ?

    • :

      Friday next week

  12. 5 out of 5

    (verified owner):

    The unit was shipped very fast and has been working great. The only thing I recommend is sending out updates on when the products are shipped. I had to contact the company to receive the tracking number. Other than that, I’m very impressed. Thanks!

  13. 5 out of 5

    :

    Hi and happy new year,
    Would you please let me know if you are going to restock the Asic miners? Thanks

    • :

      We should have some relist this week by Friday

  14. 4 out of 5

    :

    Hi Joseph, Will these be in stock anytime soon. And do you do international delivery?

    • :

      Will have some in stock by next Monday

  15. 5 out of 5

    :

    Will i have to buy a power supply or does it come with one. If i have to buy separately which one on your site would you recommend. Also i’m shipping to Ghana, what will the shipping cost be? Thanks

  16. 5 out of 5

    (verified owner):

    Joseph G,

    Will there be S7’s listed tonight or tomorrow a you mentioned? Thanks

    • :

      We are still catching up on orders from last batch. We ran out of the 120mm fan we use on the S7. Currently sold out and expect to be in stock Monday. It will be a couple more days before we relist.

  17. 5 out of 5

    :

    Any ideas when these are back in stock?

  18. 5 out of 5

    :

    Can you only pay in bitcoin or can you use a card?

  19. 1 out of 5

    :

    Thanks for informing us ahead of time to have money in our Coinbase account.. that really screwed me over. Usually you can purchase items on your website on a card.

    • :

      Sorry about this, really not our intention. When it come to miners them self we only accept Crypto payment and all sale are final.

  20. 5 out of 5

    (verified owner):

    Joseph G,

    Thank you for the fast shipment and quality used S7’s received. I am very pleased with your service. Do you have any idea when the next batch of antminers will be available?

    Thanks

    • :

      We are working on more and should have another batch in about 10 days

  21. 5 out of 5

    (verified owner):

    Miners are absolutely fantastic. Ordered two S7’s and both came in amazing condition. Very clean and pristine. Will definitely buy more from here when they come in stock. BTW voskcoin sent me

  22. 2 out of 5

    (verified owner):

    This is solely my experience with the two miners they sent me. This is not a reflection of their company because so far the tech support has been very helpful. Ok here goes…

    I bought 2 of these miners. From the moment I turned them on I had issues. The hashrate was all over the place. I Changed pools and it seemed to be cleared up for about 2 hours then the hashboards were dropping out left and right. I pulled the comm cables and swapped them around with no success. I cant run them over 4.1 TH/s at all. Most times 1 board will die every 15 minutes and the other one has had all 3 boards die. they are VERY unstable regardless of my actions. At this point im at wits end because for me $1700 is a lot of money to have products that don’t work. The support team is currently working with me on a solution but as you know that cant come quick enough. The game of crypto is a tricky one and the sooner you can get hashing the better. So downtime is a BIG deal. Im sure they test all the products before they ship but I guess my two miners got overlooked somehow because they are quite frankly lemons. I hope to reach a resolution with these guys as they have been very helpful so far BUT this shouldn’t have happened to begin with.

    • :

      If you have not do so already. Contact us via our contact page for an RMA replacement. We will send you a prepaid label

  23. 3 out of 5

    (verified owner):

    Hey can i receive some help? After a while one s7 started to have issues. One or two of the boards drop down to 16c and the miner hashes between 1.5-2 TH. Any advice? Hope for a response soon. Thanks!

    • :

      Contact us via our contact page. please provide your phone number and a good time to call you. Albert will follow up with you

  24. 3 out of 5

    (verified owner):

    I still have not been contacted. It has been three days I haven’t received any type of contact about my S7.

  25. 3 out of 5

    (verified owner):

    mine dont die they work but with factory frequency they dont go over 4.1/4.2 th/s what is optimal frequency they should be set at or is this something we shouldnt mess with?

    • :

      Couple possibilities. 1) Power supply should be able to push 1500watt “Don’t starve the unit” 2) Try different frequency. The default is 700 but you might get higher hash rate at 680 or 650. Sometime the Hardware error are to high, you can see this under HW count. Play with the frequency and check the error count. Finally update the firmware to the latest. Keep us posted

  26. 3 out of 5

    (verified owner):

    Received one(of four) with faulty hash board (all X’s on status page). Have checked connnections and everything else without opening up. Should I just submit the RMA and send it back? Order # 14287, I have emailed both Missa and you (Joseph) with no response in 3 days.

    • :

      Based on your e-mail the technical assistance you needed was beyond my knowledge so I had forwarded the e-mail to our senior tech support guy. I was unaware that he hadn’t replied to you, so I will be verbally reminding him now.

    • :

      anything@parallelminer.com will not reach us. Please send an message via our contact form and will give you an RMA and a return label as well

  27. 2 out of 5

    (verified owner):

    I received an s7 and am getting a red flashing light and continual beeping. I have ordered 3 asic miners from you, and so far the 2 that have been delivered have not worked. I have also tried contacting several times in regards to this and an Avalon6 that is not working either. Please advise.

    s7 Order #14269
    Avalon6 Order #14424

    • :

      Please contact us via our contact page. Include your phone number and a good time to call. We might give you a call to make sure the unit is defective as all our tested prior to shipping

  28. 1 out of 5

    (verified owner):

    I ordered four s7s and had to RMA two of them due to them not working.

    I received 2 replacements and they are dropping hashing boards every 15-20 minutes. I have contacted your support team to issue the RMA shipping label but am still waiting after almost a week.

    Please advise.

    s7 Order #12603

    • :

      I will speak with them on Monday and see what is going on. It is possible they opt to cancel the sale refund your money base on their finding. I will make you get an update by Monday

  29. 5 out of 5

    (verified owner):

    I’ve read the past couple reviews with low ratings, which made me think that this recent batch might be bad, however I got my S7 today and it is operating at 100% of advertised hashing rate. I’m using the 240v 1400 watt Delta power supply and both the Miner and power supply are running nice and cool. Shipping was relatively quick (for the ground option). Lastly Missa is probably the best customer service rep out there! Will definitely buy from here again!

    • :

      Fresh air is always nice. Thanks

  30. 1 out of 5

    (verified owner):

    This is one bad batch. The S7 is not holding its hasrate, dropping to 3TH and eventually stopped hasting altogether after 24h. Waiting on Missa’s response how to rma this.

    • :

      In the mean time – try to lower or increase your frequency. See what result you are getting

  31. 1 out of 5

    (verified owner):

    Since I wont get a call back or a reply to my numerous emails via the contact form since last Thursday 1/18/18. I will have to put my email here. I need instructions on how to return this defective S7 and get a replacement!

    We just received our S7 Antminer and it is clearly unstable. We are using a bitmain APW3++ PSU so power should not be the issue. We have multiple S9’s running perfectly fine and they are on same network and under the same environment.

    The S7 is running at an avg. of 2,052 GH/S and bounces up and down between 3,500GH/S and 1,000GH/S, sometimes reaching 4,200GH/S. We are running at 650M frequency which is the setting it was defaulted at when we received it. we have changed to 625M and 700M and has pretty much the same ratio of instability.

    Visual/Auditory observations – The S7 fan speed ramps up and down A LOT, obviously the output of GH/S increases when fan speed does and vice versa. With that said Chain #2 is always at a 10+ Temp difference to that of Chain #1 and Chain #3, Chain 1 and 3 always is within a few temps of each other. Averaging 51Temp and Chain #2 averaging 40Temp.

    Antminer S7 ~4.73TH/s @ .29W/GH 28nm
    Order #14998

  32. 5 out of 5

    (verified owner):

    I’m following up with my previous review to say that I was contacted same day when I sent them an email but unfortunately the email went into spam and I did not catch it. I am working on troubleshooting steps with support now.

  33. 1 out of 5

    (verified owner):

    Following up, since I haven’t got any response back about RMA; I have changed the frequencies up and down, but the miner remains highly unstable. Works ok for a few minutes and stops hashing and reboots. An S9 in the exactly same environment has no issues.
    Order #14297

  34. 4 out of 5

    :

    When will they be back in stock? I am willing to buy as soon as possible. Thank you

    • :

      We are working on our last batch. We should have a small qty up by Feb 1

  35. 1 out of 5

    (verified owner):

    It will fail before you make your money back. Two boards died in 45 days and I am SOL.

  36. 1 out of 5

    (verified owner):

    Over a month later and still having issues. Purchased 4 units in January (Order # 14287) with one having a faulty hash board(x’s). After RMA’ing the board I still was having issues with it sporadically dropping hash rates with low temps. Was advised to send whole unit back for replacement. After receiving “replacement” unit I am still having the SAME issues with this one. I’ve tried every troubleshooting method I can come up with. Different PSUs, checked all cables, adjusted frequencies, ect. I emailed Albert Monday the 19th of Feb. explaining the issues with this replacement unit. No response. Emailed again the 27th and still no response after 2 weeks.
    As of now I am out $800+ on this unit and over a months worth of mining profits.

    • :

      Hi Patrick,

      I apologize in the delayed response. I have your replacement unit currently being tested with your pool and worker configurations. Your replacement will be shipped out after 24 hours of testing if no issues occur with the unit. Please check your email for a prepaid return label for your RMA.

  37. 1 out of 5

    (verified owner):

    Same issue as dabomb6608; 2 failed repair attempts and the miner is still not holding its hashrate. No repsonse from support anymore.
    Very disappointing.

    • :

      Albert, will follow up tomorrow and we will make good on you Sir. One of the problem cause I think, is our tech use our famous Delta 2400/1400 PSU which pushes 12.5volt. Th extra .5 volts does magic for any ASIC miner. We will now kit the Original Delta 1400watts 12.5 volts PLATINUM with all S7 starting Friday. This will eliminate discrepancy between our test and the client

  38. 2 out of 5

    (verified owner):

    Managed to keep it working at full hash for 4 months, one board failed, then 1 month later another board died. I keep it on the shelf to remind me of what “not” to do in the future.

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