GekkoScience Compac F 300Gh/s+ USB Bitcoin / SHA256 Stick Miner Most

Powerful bitcoin miner in the mini usb stick, can mine any SHA256 such as btc, btc cash, digitbyte, etc
Stock hashing speed: 300 GH
High Speed: 350 GH++ (Higher speed requires usb port above spec). To reach max speed of 500GH you will need 3amp usb port per miner!
Completely silent operation, includes silver mini heatsink to cool miner but requires a powered usb hub (10 watts per miner per port) to run
Compatible with Windows, Mac and Linux OS using cgminer software. Includes user manual with instructions for easy setup.