NM-usb-chain is a NMMiner development board, with Wi-Fi, Bluetooth.The NM-usb-chain devices can be chained one-by-one..ESP32-S3FN8, support Wi-Fi and BLE.The NM-usb-chain also can working with the ESP32-S3 sample programs and development tools from for and for Platform.io, users can operate via Bluetooth, Wi-Fi. With the usb-chain device, you can do that:Daily work and life current monitoring.Lottery when charging your phone.Double your lottery device hashrate without any power supply device added. Such as usb-chain + T190, usb-chain + for T Dongle S3, etc. Deeply optimazion for ESP32-S3: Achieves high performance of 385kH/s with a single chip in solo miner mode, while maintaining low power consumption. 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 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. Master Chip:ESP32-S3FN8, Xtensa32 dual core processor, 240MHz Operating mode:BTC lottery/USB power meter tester Wi-Fi:802.11 b/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/g, BLE Power supply range:5-20V Power monitoring range:5-20V/0-6A Display:0.96 inch TFT-LCD; 160x80;Full-color (The product printed words depending on the batch, but this does not affect use) Color: As shown Material: ABS Package Contents: 2 x Usb Chain BTC ESP32 2 x adapter(Adapter color and style are random,Specified colors and styles are not accepted) 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.