Antminer R4, Batch 6(8.7TH/s)
1. Click here for specifications and other information on the Antminer R4.
2. Power consumption figures in the specifications will vary with your PSU's efficiency, the ambient operating temperature and the accuracy of the power meter.
3. Power supply unit is not included. You will need an ATX PSU. Bitmain recommends the APW5 power supply for both the Antminer R4 bitcoin miner.
4. All three PCI-E ports are required to power the board.
5. You can use one PSU to power multiple boards, but do not attempt to power one board with two PSUs.
6. Please do not power up the control board before the hashboards are powered up.
1. The shipping cost is not included in the retail price shown above. Please fill your desired quantity, shipping address and select your preferred shipping service while placing an order to learn the shipping cost to your shipping address.
2. Orders are confirmed only after complete payment, inclusive of shipping cost, is received by Bitmain.
3. Special Provision: Order cancellation or refund request will not be entertained for this batch by Bitmain. We advise you to make any payment only after careful consideration.
4. For bitcoin payment, please use the exact amount mentioned in your order and complete the payment within one hour. After one hour, the order will expire and your payment may not be detected by the system automatically. If the payment is submitted but the receipt is delayed, we will make your payment "Valid" manually.
5. USD wire transfers are not accepted for this batch. Please do not transfer any USD payments to Bitmain for this batch because Bitmain will not take responsibility in case your wire transfer is lost.
6. To get a fast response from our team for any order or sales related inquiries please submit a request here.
Please do not place your order with anyone or anybody claiming to be an official Bitmain representative over email or Skype. It can be a scam and your confirmed order may never be delivered in such cases. Bitmain is neither responsible for nor offers any kind of compensation in such cases.
NOTE: The price of bitcoin mining machines has to be adjusted frequently in accordance with variables like the BTC/USD exchange rate, the bitcoin network difficulty, or the expected difficulty increase. Refund requests based on price changes cannot be honored.
1. A 180-day warranty is provided starting from the shipping date. To avail this warranty a repair ticket must be generated by the customer on Bitmain's website. Overclocking the miner will void the warranty immediately.
2. The warranty only applies to the original purchaser who purchased the machine directly from Bitmain. Once the miner is resold warranty coverage becomes the responsibility of the re-seller.
3. All sales are final. No refunds will be granted. Defective miners can be repaired for free if they fall under the Bitmain warranty policy. After the warranty period, machines can be repaired at the cost of parts and labor.
4. The following events will void the warranty:
a. Customer removes/replaces any components by himself without receiving permission from Bitmain first;
b. Damage caused by poor power supply, lightning or voltage surges;
c. Burnt parts on hash boards or chips;
d. Miner/boards/components damage due to water immersion or corrosion due to wet environment.
5. For all repairs or RMA, within warranty or not, customer must return the defective parts at his/her own expense after opening a support ticket and troubleshooting with Bitmain's instructions.
6. Bitmain will cover shipping cost when shipping a replacement unit within the warranty period.
7. If you notice there are some loose heatsinks when you receive the miner, please inform us by email to firstname.lastname@example.org within 3 days from the date the package is received according to UPS/DHL/FEDEX's website.
8. Bitmain does not take any responsibility for or compensate for any loss as result of downtime caused by delays in transportation as a result of custom formalities or other reasons.
Please read Bitmain’s Terms & Conditions for a complete list of conditions and terms that apply to all orders placed on Bitmain.com
To avail the following discounts, please only pay price for your order AFTER discount plus shipping cost and leave us a message with your order ID. We'll confirm your order manually.
For an order containing 50 or more units, a 0.5% discount will be offered;
For an order containing 200 or more units, a 1.5% discount will be offered;
For an order containing 500 or more units, a 3% discount will be offered.