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Customer Services Hours:10:30am - 5:30pmSales:8:00am - 6:00pm
  • A4 Dominator 280MH/S Scrypt Miner Ships within 24 Hours. Free Shipping
  • A4 Dominator 280MH/S Scrypt Miner Ships within 24 Hours. Free Shipping

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  • A4 Dominator 280MH/S Scrypt Miner Ships within 24 Hours. Free Shipping

    Zoom Hash

  • $ 1,999.99 $ 2,499.99

  • Description

    Arrives in USA within 3-5 Business Days to your door after ordering. Ships factory direct within 24hours of cleared payment.


    • Part Number: INNOSILICON A4 Dominator
    • Hashrate: 280Mhs per unit (+-10% performance, can be over-clocked at user's risk)
    • Size: Length 28cm * Width 26cm * Height 13cm
    • Gross weight: 9.2KG (without PSU)
    • ASIC: A4, 80pcs
    • Blade: 4pcs
    • Voltage: +12V
    • Required rated PSU: 1050W or above, 4 * PCI-E 6Pin
    • Cooling: air-cooled with 2 fans
    • Internet connection: Ethernet
    • Power supply connection: 2 PCIE port per power board. It is recommended to use an independent power supply to the whole power supply. In case of non-independent power supply, each board can be connected to a different power supply, but each board shall not be connected with multiple power supplies and ensure that the power board.


    1. Packing list: 2 barrel type tubes, a raspberry pi (as a controller running cgminer), an SD card, and cable (without power supply)

    2. Shipping: Within 24 hours after payment confirmation.


    Miner sales are different from the general consumer electronics products, which are specially customized according to customers’ needs. Please notice before purchase. The after-sales service policy is as follows. After payment, the product cannot be returned or refund.

    45 days parts warranty (starts once the miner gets received). If any problem, we will offer instructions on how to check the miners and find out the faulty parts, and we will send the corresponding parts for replacement after getting video/pictures as proof from the customer.

    The price of miners may be adjusted at any time without prior notice or price compensation to the customer.

    The warranty expires in the following cases:

    • Miner itself is demolished, privately altered or component replacement;
    • Lightning, voltage surges, poor quality power supply causes damage;
    • Circuit boards and components are filled with water, exposed to moisture or corroded;
    • The circuit board or the chip is burned;
    • Over clocking.
    • If this happens, services of your miner maintenance will be charged. For the specific procedures, please refer to the after-sales process.


I did a decent sized buy from ZoomHash recently and everything went really well. Great communication and no funny business. Just wanted to add my experience to the thread, good guys here. ~ quakefiend42

Without question one of the best sellers at the moment. ~ achtung082

As far as honesty goes Zoomhash is as honest as they come. Prices cant be beat either. ~ vabchgent

Check out our thread!


We guarantee same day shipping from our warehouses in USA unlike our competitors that take 2-4 weeks to ship from Asia.For bulk orders contact us. We have sold over 1000 GPUs and ship internationally.


Contact Us

14836 E Valley Blvd
La Puente, CA 91746
Phone: (888) 933-5282
Hours:10:30am - 5:30pm

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