FREE: Bitmain Antminer U1 1.6 GH/S USB Bitcoin miner, overclockable

The listing, Bitmain Antminer U1 1.6 GH/S USB Bitcoin miner, overclockable has ended.

USB Bitcoin Block Erupter Ant-Miner
1.6 GH/S Overlock to 2.2 GH/S, But can go up to 4 GH/S.

•Computing power: Rated 1.6GH/S up to 2.2 GH/S, But Resistor Set in 3rd picture allows Overclocking up to 4GH/S.These resistors will let you overclock your Antminer U1 miner beyond the 2 GH/s hard limit. It's an inexpensive method of getting more performance from your investments.
( *Note: You will need to provide cooling to dissipate the heat at higher speeds)
•Power input: 5V
•Interface and System:Usb / window 7, Window 8 or Window 8.1
•Power Consumption: 2W

*User guide pdf link is : https://www.bitmaintech.com/.../AntMiner%20U1%20user%20guide.pdf

Due to the nature of the product and the volatility of Bitcoin and mining, all sales are final. There will be no refunds and no returns are accepted.