Bitmain Online wants you to be thrilled with your new purchase. However, if you need help with an item, we are here to help.

Please review our return policy before ordering. All sales are final. No refunds will be given. A 90-day warranty is provided starting from the shipping date. Defective miners under warranty can be repaired free of charge under the warranty policy. Most components are covered under their manufacturer warranty which is beyond 90-days. To warranty return an item, the item must be new, unaltered, undamaged and in its original packaging including all the accessories and cables. Warranty returns can ONLY be exchanged for the another item(s). Please read carefully our overall Return Guidelines Policy for additional information on restocking fees.

Overall Warranty Return Guidelines

These are Bitmain Online’s Overall Warranty Return Guidelines applicable only to products purchased by you directly from the Bitmain Online website. All returns must meet the overall guidelines in order for the individual return policy to apply. If you complete a purchase and wish to cancel it, contact the Bitmain Online RMA Department at Custom or Rush orders being processed that were requested by the customer involving increased graphics cards (GPU) capacity, custom components (Motherboard, Power Supply, Etc.) and orders made specific for the customers request outside of the normal order process featured on Bitmain Online’s site are not subject for cancellation. All product warranty returns require a Return Merchandise Authorization (RMA) number. Before returning a product, please, first contact Bitmain Online customer service and obtain a Return Merchant Authorization (RMA) number before the end of the applicable return period. Bitmain Online will not accept warranty/defective component returns without a RMA number. You may obtain a warranty RMA number by contacting Bitmain Online RMA Department at You must ship the product to Bitmain Online within ( 4 ) days of the date that Bitmain Online issues the warranty Return Merchant Authorization (RMA) and follow these steps:

  Ship back all products you are seeking to return to Bitmain Online and for which you received a RMA number.

  For warranty returns , the item must be new, unaltered, undamaged and in its original packaging including all the accessories, cables, media, documentation and any other items that were included in your original shipment.

  Ship the products at your expense, and insure the shipment or accept the risk of loss or damage during shipment.

The buyer will be responsible for actual return shipping charges. Purchases can be exchanged for another item(s), or a refund. Shipping will not be refundable on cancellations where the order has already been shipped. For product warranty returns shipped after the allowable 4 day RMA return time frame, Bitmain Online reserves the right to not accept the return of the product and will reroute the item back to the customer. For RMA returns shipped after the 4 day return period will be handled on a case-by-case basis as there may be special circumstances as to why the customer was unable to ship the product with supplied RMA within the allowable 4 day period. Upon receipt of your return, Bitmain Online will notify of updates to the warranty return and estimated return date. Note: Before you warranty return the product to Bitmain Online, make sure to back up any data on the hard drive(s) and on any other storage device in the product. Remove any and all confidential, proprietary and personal information as well as removable media such as flash drives, CDs and PC Cards. Bitmain Online is not responsible for any confidential, proprietary or personal information; lost or corrupted data; or damaged or lost removable media that may be included with your return. We recommend that you ship return merchandise via UPS with tracking, signature confirmation and that you request adequate insurance to cover the purchase price of the shipment. Bitmain Online will not assume responsibility for reimbursement or compensation in the event that return/exchange packages are damaged, lost, stolen, or mishandled.

Restocking Fee

For all orders: Unless the product is defective or the return is a direct result of an error on Bitmain Online’s behalf, Bitmain Online will charge a restocking fee of 25% of the purchase price paid, plus any applicable sales tax.  This applies to cancelled orders being processed and orders that have shipped.

Modifications for Terms and Conditions:

Bitmain Online may make changes to the Site and the Terms and Conditions. It is your responsibility to review the Terms and Conditions for updates or changes. If you do not agree with the Terms and Conditions, you should not use the Site.

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