Optimized Mining Power: Experience next-level solo Bitcoin mining. This compact and efficient miner achieves high performance of 308KH/s on a single chip while maintaining low power consumption. Advanced ESP32-S3 Chip: This miner uses the latest ESP32-S3 chip, providing enhanced processing power to ensure reliable and continuous mining operations. Compact Design: Designed to minimize space usage, it can be easily installed in any setting, perfect for both and experienced miners. Lucky Miner Robot Chain Tower: Join the Robot Chain Tower system for a chance to win mining jackpots on every operation, enhancing your mining experience and potential rewards. The NM-bot-chain has no screen, but you can config it with your phone or the NMMiner official flash tool. Master Chip: ESP32-S3FN8 HashRate: 308KH/s Wi-Fi: 802.11 b/g/n, up to 150Mbps Device management: NMController Power Interface: Type-C USB/SH1.0 connector*2 Power supply range: 4-6V Memory: 384KB ROM; 512KB SRAM; 8MB SPI Flash Intergrated Feature: WiFi 802.11b/g/n, BLE IO Interface: Type-C USB/12pin 2.54 Heade*2(15 IOs available ) Bluetooth: Bluetooth 5, BLE Display: 3*LEDs Hardware Resource: 2*ADC; 3*UART; 2*I2C; 4*SPI; etc Operating temperature: -20-70℃ Description: The devices can chained with the power interface one-by-one. The NM-bot-chain also can working with the ESP32-S3 sample programs and development tools from for Arduino and Platform.io, users can operate via Bluetooth, Wi-Fi. Main Features: No External computer is needed. The system supports SSL 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. Note:due to different production batches, the color of heat s