This is a mini, low-cost, secure and portable cryptocurrency miner.This is a free and open source project that let you try to reach a bitcoin block with a small piece of hardware.The main aim of this project is to let you learn more about minery and to have a beautiful piece of hardware in your desktop.Simply connect to your WiFi and provide your wallet address to start mining. BTC Nerd Miners , also known as Solo Lottery Miners. This miner only consumes around 1 watt of power and can run on mini solar panels, making it a zero-cost option. The mining software is pre-installed and all that's needed is to connect it to power via USB Plug, as well as Wi-Fi and your Bitcoin address. Hashrate 74Kh/s. USB-A powered,compact and portable, simple and easy to operate.Can be directly connected to PC/Note book/USB HUB/Power Bank/mobile Phone/USB charging socket... Colour:As Shown Material:PCB+Plastic Due to different batches, the appearance and printed words slightly Package Contents: 10 x usb Lottery miner Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.