NMMiner inside: no need license anymore, deeply optimized algorithm firmware enhances the hashrate to 1000KH/s(Floating up and down), increasing the probability of winning the lottery by 1900% ( V2 only 55KH/s). Standalone: This bitcoin solo miner works directly over WiFi. No external computer is needed. This convenient design allows users to intuitively understand the operation of the mining machine, making it easy to monitor. NMMiner official service: the NMTech Team offer long-term support, can upgrade to every new version for free. Widely used:It can optimize software that achieves a higher Harshrate to 1000KH/s. Amazing for ESP32 Solo Miner. Visual interface:This board is better V2 equipped with a 2.8-inch display screen wich touch, which can fully and clearly display the mining status, as well as related information. Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Color:As Shown Material:Acrylic Package Contents: 4 * with Case 4 * Data Cable (Color is random, cannot be specified) 1 * 4 Slots Stand Base 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.