NEW! Yellowjacket 2.2gh/s - 3.0gh/s USB Asic Miner (Bitfury) BTC , Not Antminer Based on the Nanofury USB ASIC open source design Contains 1 Bitfury chip with Real-world performance of 2.2GH/s and no overclocking or modding required No fan or heatsink required at stock settings Easy setup with native bfgminer support Black anodised aluminium backplate for added durability