1. NM-usb-chain is a NMMiner Lottery Board, with Wi-Fi, Bluetooth.Deeply optimazion for ESP32-S3: Achieves high performance of 120kH or s with a single chip in solo miner mode, while maintaining low power consumption. 2. The NM-usb-chain is usb-A interface miner, multiple devices can form a BTC Lottery device chain.The NM-usb-chain with a 0.96 inch TFT-LCD.The NM-usb-chain can be configured with your phone or the NMMiner [official flash tool.]Monitor its working status at any time through the [NMController].Only one USB Power is enough for the all the ChainBot Devices. 3. The stronger the power supply of USB powered devices, the more ChainBot devices they can support. Actually, the 5V-3A USB Power, almost can supply power to 10 devices.In the current mode, the device measure the current of the USB interface. 4. Using a USBA-typeC data cable, it can be linked with other Lottery device.(data cable not included).Specially optimized algorithm firmware enhances the arithmetic power to 120KH or s, increasing the probability of winning the lottery by 60percent .No External computer is needed. 5. The system supports secure connection if the pool supports it.By double-clicking the USER key, allows you to switch to a desktop clock mode with the BTC Lottery running in the background.The NM-usb-chain can form a chain structure one by one, and only requires one power supply, making the overall design more concise. Operating mode: BTC lottery or USB power meter tester Hash Rate: 110-120kH or s Wi-Fi: 802.11 b or g, up to 150Mbps Device management: NM Controller Power Interface: USB-A Male connector x1 USB-A Female connector x1 Intergrated Feature: WiFi 802.11b or g, BLE Power supply range: 5-20V Power monitoring range: 5-20V or 0-6A Colour:As Shown Material:PCBandPlastic Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 2 x BTC Lottery Board 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.