USB ASIC Bitcoin Miner Block Erupter 336 Mh/s New Model Sapphire Miner Rev 3.0 Thin, BLACK Color

Great for Bitcoin mining pool or Solo Lotto Mining using any USB Port, cooling is recommended if mining 24/7 (USB Fan is suggested)
Take it to work, school, library or any USB port and run Cgminer 4.9.2 to start mining with optimal performance.

For Setup information, configuration, driver, software download and more visithttps://bitcointalk.org/index.php?topic=220450.0

Due to the nature of cryptocurrency, volatility and shipping of hardware, no returns or refunds will be given for any reason, including misuse of the device, overclocking, overheating, or if the purchaser is unable to install or is not sure how to use the device properly. 
 
What Is Bitcoin Lottery Solo Mining? 

Solo mining is different from traditional pool mining. In a pool, the entire pool splits a reward, so your miner is always making money for you, but you are always sharing that with the other members of the pool. With solo mining, you do not get paid unless your miner finds and solves a block. If you successfully mine a block then Bitcoin will be sent directly to your BTC wallet.

If your miner does not find a block then you will not receive anything. That’s why this listing is a LOTTERY Solo Mining - there is no guarantee that your miner will find a block.

However, with your USB miner working around the clock for you, you stand a much better chance than someone who buys a mining contract for an hour, day week or month. You are always mining 24 hours x 7 days.

For those of you who enjoy math, each day 1,800 BTC are mined in blocks of 6.25 BTC, with mining pools accounting for 98% and solo miners accounting for 2%. That means that roughly 6 times a day a Solo miner hits the Bitcoin lottery. That means that 6 times a day, your miner may be the lucky winner of 6.25 Bitcoins!