1500 Watt Power Supply Kit for (2) A4 Dominator Litecoin Miners LTC Litecoin or Avalon 721/741 100-240v

1500 Watt Antminer V9 Power Supply
4.67 out of 5 based on 3 customer ratings
(4 customer reviews)


Custom built using the X-Adapter REV X6B. This PSU kit is pre-wired and fully tested before shipping. An A4 Dominator Kit mining at full capacity will consume 1000 watt +/- 10% at the wall with this configuration.

129 in stock

Warranty: 30 Days

SKU: KT-A4721-1500CB8SET03-X6B Categories: , , Tags: , , GTIN: 880926805886

Product Description

1500 Watt Power Supply Kit (2x750) 110-240V 80+ Gold 92% Efficient

This HP 1500W A4 Dominator (dual set) or Avalon 721/741 Miner Power Supply kit is built using our X-adapter revision X6B and 2 HP 750 PSU. 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.

A4 / Avalon 7 1500W Power Supply Kit Components:

HP Server Power Supply Specifications:

  • Input: 110V-240V
  • Max Output: 1500W (2x750)
  • Input Connector: C13
  • Efficiency Rating: 80 Plus Gold 92%

X-Adapter X6B Breakout Board Features:

  • Support up to 120Amp / 1400Watts
  • Electronic on /off switch. Retains its state
  • 8 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 PCIe Cable Specifications:

Gauge 16AWG
Length 24in
Max Amperage 12A
Max Wattage 400W
Connector A 6Pin PCIe Male
Connector B 6Pin PCIe Male

Kit includes:

  • (2) HP server power supply.  750 watt, Gold rated.
  • (8) PCIe cables, 16AWG THHN 6-pin to 6-pin
  • (2) Rev:6B X-Adapter
  • (8) 3M Rubber foot pads
  • X6B manual available here as a PDF
  • 30-day warranty

Power cord not included.

Additional Information

Weight 12 lbs






Got something to discuss?

3 years 9 months ago

Will this work on a S9 antminer?

3 years 9 months ago

It’s complicated. The answer should be yes but it is NO. The S9 consist of (3) hashing boards + (1) controller, for a total of (10) PCie cable. The unit is rated at 1450watt, let us rounded at 1500watt. What is 1500watt / 2 power supply = 750watt! This look good but there are (3) hashing board not (2)! Which mean one board will have to be powered by two separated PSU and that is a big NO NO. We are working on the X11 adapter which will allow such configuration . In the mean time consider buying (2) 1200watt and enjoy the extra power, if you ever want to overclock the unit you will have plenty power

3 years 9 months ago

Why it is a bad idea to power (1) hashing board with (2) power supply? If one of your power supply die, the hashing board will be partially powered. As a result it will overheat and get damaged.

3 years 9 months ago

hi after replacing wires, replacing one x6 to x7 adapter and adding a pico psu. will this be able to power 8gpu mining rig? ~1350 watts im thinking like that. 2pcie cables for gpus (onefor gpu one for riser) total of 16 cables +one additional for pico psu and one additional for peripherals . now my, main concern is that psu powering mobo has to start second. assuming that both powersupplies will be left on constant ON and connected to same power rail with switch. wont there be any problems of syncronizing them? (mobo left on autostart on power loss ofc )

3 years 9 months ago

This specifically mentions an A4 Dominator Kit. Does this work for powering GPUs also? If these are regular PCI-e connectors then I’m assuming the answer is yes, but I just want to make sure.

3 years 9 months ago
3 years 9 months ago

Will this work on an s7 if I use one psu to power 2 boards and the other to power 1 board and the i/o board?

3 years 9 months ago

Yes it will. However we suggest not to power one hashing board with two power supply. If one PSU would failed the other PSU would FRY the hashing board. Our X11 Board will solve this problem. Due to be release soon


4 reviews for 1500 Watt Power Supply Kit for (2)...

  1. 5 out of 5

    craig.ginsbe (verified owner)

    Works. Was very loud when first turned on but got much quieter once warmed up

  2. 4 out of 5

    roshanstagger (verified owner)

    How to connect two power supplies?

    • Joseph g (store manager)

      Late reply – Sorry the X7 or X8 will not allow. Only the X6B X11 and X7b are capable

  3. 5 out of 5

    Kevin (verified owner)

    Liked them so much,I ordered more a week later.

Add a review