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This is a SD Card Image, not and actual sd card, you will simply drag and drop the content of the zip file I send you to a micro sd card. It is a 1 Step process that will not only load the latest Blissz for the D3 over any firmware, but will also bypass the "Cannot Find Signature" error that prevents you from loading the image if you have one of the newer Antminer firmware that block 3rd party firmware.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.