From Bitmain shipping rules
View original size - Click on the pictureReturning policy:
1. Warranty period: 90 days after the product is shipped out. Repair tickets should be created within 90 days, otherwise the warranty will be void.
2.
Please MAKE SURE the declare value should be “within $45” and the description of the product should be
“Warranty part” on the waybill, otherwise the extra fee of custom clearance will be billed to the client.
3. For the miner, please DO NOT return the whole unit , and simply return the defective part (Hash board, IO board or BB board),please refer to the pictures below.
For the PSU ,please do not disassemble it and ship back the whole unit.
4. Be sure enclosed the RMA info in the format below in the parcel .
5. The package will be rejected if there is no Repair Ticket created.
So I can not insure the shipment with the real value of it.