Specially optimized algorithm firmware enhances the hashrate to 468KH/s (up and down), increasing the probability of winning the lottery by 750% (Nerdminer V2 only 55KH/s). Optimized Software that achieves a higher Harshrate of 468KH/s. Standalone: can work as a BTC lottery miner directly over WiFi. No External computer is needed. Embedded: low cost, low maintenance, high availability, high reliability, low power. Versatile: solo/pool mining. Colour: Material:PCB+Plastic Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Package Contents: 1 x Solo Lottery Miner 1 x USB Cable(Random Color, don't accept the specified color) 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store