HP 750 Watt 12 Port Chain Sync GPU Mining Power Supply Open Air Rig PSU 110-240V

750W server PSU Kit
750W server PSU
4.00 out of 5 based on 7 customer ratings
(10 customer reviews)


750watt PSU kit for GPU Video Card Mining. Kit include proprietary X-Adapter REV:7B, set of (8) 26inches 6-pin to 8-pin(6+2) PCI-E 16AWG, (4) heat resistant rubber foot pads.

Out of stock

SKU: KT-7508SET04-X7B Categories: , Tags: , , GTIN: 719826779631

Product Description

750W Server Power Supply PSU Kit for GPU Mining

This 750W server PSU kit is custom built using the X-Adapter REV 7B. Designed and tested to run in a 24/7/365 mining environment. Our Patent Pending Chain Sync Feature through our X6B, X7B, or X11 Breakout boards is done by connecting the interconnect cable from PSU 1 to PSU2 then PSU 2 to PSU 3; feature tested with up to 20 PSUs.

** Do not attempt this setup using other Grid-Seed Adapter or/and lower quality cables.

750W Server PSU Power Supply Kit Components:

HP Server Power Supply Specifications:

  • Input: 100V-240V
  • Output @ 100-240V: 750 Watt
  • Input Connector: C13
  • Efficiency Rating: 80 Plus Gold 92%

X-Adapter X7B Breakout Board Features:

  • Support up to 120Amp / 1500Watts
  • Electronic on /off switch. Retains its state
  • 12 PCIe ports, for 6pin connectors
  • LED indicator lights: Yellow (receiving power) and Green (pushing power)
  • LED volt meter display Onboard
  • Protective bottom plate

6 Pin to 8 Pin PCIe Cable Specifications:

Gauge 16AWG
Length 24in
Max Amperage 12A
Max Wattage 400W
Connector A 6Pin PCIe Male
Connector B 8(6+2) Pin PCIe Male

Kit includes:

  • (1) Original HP 750W server power supply. Gold Rated.
  • (8) PCIe cables, 16AWG THHN 6-pin to 8-pin(6+2)
  • (1) Rev:7B X-Adapter tested
  • (4) 3M Rubber foot pads
  • X7B manual sheet available here as a PDF
  • 30-day warranty

Additional Information

Weight 8 lbs






Power Supply Manufacturer


Cable Length


Connector 1


Connector 2

8 PIN (6+2) PCIE

Breakout Board


Included PCIE Cables




Got something to discuss?

3 years 10 months ago

Does it comes with the power cord, or do I need to purchase them separately.

3 years 10 months ago

We do not include power cord with any power supply BECAUSE the variant are to many on the customer end. Will the customer use 220V or 120V , will he use a PDU or a wall outlet, if a wall outlet will that be in US or HK or UK or China or Mexico ….. ….. That said, remember the old desktop computer power cord ? These will be just fine with our PSU

3 years 10 months ago

R9 295×2 has only two 8-pin PCi-E yet it has 500W TDP, meaning each PCI-E cable needs to deliver 240W. Do you think the cables are rated for such load?

3 years 10 months ago

Cable rating are base on their size. Here we offer 16AWG cable which is rated at 7.5amp. On a PCIe connector you have 6 wire + 2 ground. 6 Wire consist of 3pairs. Each pair can have ((7.5a X 12volts = 90watts) x 3) 270watt. That is at the minimum with plenty to spare.

3 years 10 months ago

Of course you are limited by the PSU at 750Watts. Please don’t forget that

3 years 10 months ago

It’s gonna be 295x and a pair of RX 470 exclusively on that 750w Server PSU.

3 years 10 months ago

Thanks for quick reply. So it should be no problem for two of your wires to deliver 440w to the r9 295x, right?

3 years 10 months ago

440watt load on two of our 6pin + 2pin cables will be just fine

3 years 10 months ago

Very noon question, but can I use oil as lubricant to install the breakout board?

3 years 10 months ago

Yes … Just make sure to wipe any excess

3 years 10 months ago

Is it safe if the Power Supply is pulling 750w from the wall? I assume with 90% efficiency the actual load would be like 680w ish, Are these Server PSU rated to handle such load 24/7?

3 years 9 months ago

Do you have any eta on when you will have this PSU again? Thanks.

3 years 9 months ago

We just secured 2500pcs. and will have them early next week

3 years 8 months ago

Building my first rig so pardon the dumb question, how do you connect the molex to sata connector that comes with risers? I know you can’t connect the molex to sata using a different PSU due to fire hazard.


10 reviews for HP 750 Watt 12 Port Chain Sync...

  1. 5 out of 5

    Buyer (verified owner)

    Great kit, I have reviewed the items separately on their own pages but the pricing on this kit was too hard to resist – very happy with my purchase. Parallel Miner, keep up the great work and quality!

  2. 5 out of 5

    maxime506 (verified owner)

    Loud but do one hell of a job. Have 7 Graphic Cards hooked on to both of them in total. Get both for a mere $140 with shipping. Takes a little long to arrive but still way cheaper than a 1500w Gold rated ATX Power supply!

  3. 2 out of 5

    Kryptonite113017 (verified owner)

    I wanted to love this but got it today after a delay in shipping and it’s dead on arrival.. Frustrated is not even enough

    • Joseph g (store manager)

      We test each on prior to shipping them. 1) unplug all PCIe cables and try to power the power supply by it self with the breakout board installed 2) did you noticed their is an on/off button in the middle of the board… PRESS ON IT. If the power supply start fine once the PCIE cable are unconnected from your Gpu’s, their is a possible short somewhere in your RIG. Dozen of other possibilities if that is the case. Finally if after doing these test the power supply is still not working .. Message us with RMA request – We will overnight you a replacement and send you pre label to return your units …. Joseph

  4. 5 out of 5

    blood.kaiser (verified owner)

    Great power supply!!! It does have a high pitched whining noise to it, but it’s not loud enough to hear it outside the room. I am definitely looking to get another one. When will they be back in supply????

    • Joseph g (store manager)

      300 back in stock

  5. 4 out of 5

    Brian M. (verified owner)

    Great deal, one of the units came with a broke plastic pull handle, so shipping probably is the issue there. However it works great as advertised and very easy to install and get up and running. Shipping was okay. I have been trying to contact the phone number and sent Emails to the customer service line to assist with getting Centrix a better cheaper shipping solution. As it took about a little over a week to arrive. So as to customer support I don’t know. I hope I don’t run into any issues as they have yet to respond. Other than that i got the item purchased and it works great they also provided me the instructions to get it working. Pretty simple in that respect. If there was no physical damage (does not hinder functionality) i would give 5 out of 5 but for now 4 out of 5. Also shipping took a little more than expected, i have better solution that only take 3 day residential no option to provide my account number for that.

  6. 5 out of 5

    Brian M. (verified owner)

    Works awesome, real great deal. I’m so happy to have found parallel miner. Thanks to Brandon Coin! Runs quiet and cool, only using them to about half capacity.

  7. 2 out of 5

    Michael (verified owner)

    Product took weeks to ship and when it did the wrong breakout board was included. I’m still waiting on the correct board almost a month later and the company cannot provide an ETA.

    • Joseph g (store manager)

      Micheal, please contact us via our contact page. We will make it right and overnight any missing item. In February we sold out of all our cables. We have plenty of stock now.

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