Design: Aluminum Alloy + Plastic CPU: Quad-core Cortex-A72 @1.5GHz RAM: 4GB LPDDR4-3200 SDRAM Main-board: Raspberry Pi 4B OS: Ubuntu20.04 Mining Apps: Helium Miner; FlexiMining apps, includes: computecoin, Mysterium, EarnApp, storj, ScPrime, PreSearch, honeygain, Peer2Profit, IPRoyal, Meson Network, TRAFFMONETIZER. Home Assistant: support Micro SD Card Slot 1* Micro SD card (32G capacity as standard configuration) Ethernet: 1* 10/100/1000M interface(RJ-45) Wi-Fi: 2.4 / 5GHz 802.11AC BLE: 1* Bluetooth5.0 BT Button: Press and hold on for 5 seconds to turn on Bluetooth LoRa Antenna: 1* External 3.5dBi LoRa antenna, SMA interface System LED: OFF (Non Power) / Blinking (System Bootup) / On (Operating) LED Display Screen: IP address & the status of BLE, Internet, Ethernet, and Wi-Fi