Check the listing for details. MICROBT WHATSMINER M30 M50 CONTROL BOARD H6OS. Condition: New. Listed at 80.00 USD. HIGHLIGHTS: DUE TO THE SELLING QUOTA LIMITATION ON EBAY, PLEASE TEXT TO US IF ANY SPECIFIC MINERS OR RELEATED MATERIALS NOT IN THE SELLING LIST, ALSO FEEL FREE IF YOU REQUIRE ANY TECHNICAL SUPPORT EVEN WE ARE NOT THE PROVIDER OF YOUR CONCERNED PRODUCTS. Product Information MicroBT Whatsminer M30 M50 control board H6OS;Condition: new;Packaging Included： 1 * MicroBT Whatsminer M30 M50 series control board H6OS ; Terms of SalesPLEASE NOTE:1. In default, this lising is using the SpeedPAK standard shipping service, for US route the transit date is approximately 8-12 working days; if require the expedited shipping service by DHL or FedEx, please contact us for the cost details, the shipping time is approximately 3-7 working days depending on the destination country, for more accurate timing please check with your local shipper office;2. Price could be changed due to the market fluctuation; 3. The import taxes, duties and charges are not included in this item price. These charges are the buyer's responsibilities; Please check your country's customs office to determine what these additional costs will be prior to the buying.RETURN POLICY:Return or refund request will not be entertained once shipment is on processing, please careful consideration in prior to the buying.