GekkoScience 2Pac USB bitcoin / BCH SHA256 stick miner
This listing is for the GekkoScience 2Pac USB stick bitcoin miner. This is a small-scale miner which requires USB power to operate - it cannot be run standalone. They're great learning tools and solo lottery miners. The 2Pac is not limited to Bitcoins only, but can mine any SHA256-based cryptocurrency.
The default operating frequency is 100MHz for 11GH/s, but as with everything GekkoScience makes, both the speed and core voltage are fully adjustable. Adjusting voltage requires a precision Philips screwdriver, but frequency is a simple software flag. 2Pacs will run from 50MHz (5.5GH) up to at least 350MHz (35.8GH/s) with a strong USB hub and adequate cooling. Extra cooling is required for overclocking! For software and driver information, please see the official Bitcointalk.org support thread. (https://bitcointalk.org/index.php?topic=1764803.0)