Optimal Mining Performance: Experience top- mining capabilities with the BM1397, delivering a powerful hash rate of 640GH/S specifically optimized for Bitcoin (BTC). Ideal for both beginners and seasoned miners Compact and Efficient: Designed with efficiency in mind, this mini ASIC miner is compact enough to fit in small spaces, making it perfect for home mining setups. It operates with minimal noise, ensuring a quiet mining environment Advanced Technology: Equipped with the latest in cryptocurrency mining technology, the BM1397 ensures a high return on investment by maximizing mining efficiency and reducing power consumption Easy Setup: This solo miner is user-friendly and easy to set up, allowing you to start mining almost immediately after unboxing. It supports various crypto currencies, making it a versatile addition to your mining gear Hign-concerned Chemical:None Power Consumption:18W Product Name: Crypto Algorithm:SHA256 Hashrate:640GH/S Network connection mode:WiFi AC input voltage:100-240V Working power supply:5 V (The product appearance and printed words depending on the batch, but this does not affect use) Plug Type:UK plug,it applies to Malaysia, the United Kingdom and so on. Voltage:AC230V Color: As shown Material: PCB Package Contents: 2 * Solo Mining 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.