Check the listing for details. Heltec HTIT-WB32LA_V3 Lora Wifi Development Board SX1276 ESP32 Display Module. Color: White, Condition: New. Listed at 49.99 USD. Description: Main chip: ESP32-S3FN8 Operating voltage: 3.3V to 7V Flash: 8M-Bits Main Frequency: 240MHz Support frequency: 868-915MHz Lora chip: SX1262 Distance: about 2.8KM in open place USB Port: Type-C Dual-mode Bluetooth: traditional Bluetooth and BLE low-power Bluetooth Development environment: support arduino USB adapter chip: cp2102 Operating temperature range: -20 ° C to + 70 ° C Support modes: Wifi, Bluetooth, Lora Different between V2 and V3 1. MCU is different. V2 uses ESP32-D0WDQ6, and V3 uses ESP32-S3FN8. This results in different GPIO pin definitions. 2. LoRa chips are different. V2 uses SX1276/8, and V3 uses SX1262. 3. The USB interface is different. V2 uses Micro USB, and V3 uses USB Type-C.