LILYGO LoRa Module T3S3 ESP32-S3 Development Board. LR1121 SX1280 SX1262 SX1276. Works great with Meshcore and Meshastic. Easy to flash. This is the T3S3 version with a Version 1.2 board. This is a great quality product. Frequency ranges available: 868MHz, 915MHz and 2.4Ghz. But do be aware that there is some confusion in regards to the type of antenna connection that is used with each item. Example: SMA male [RPSMA] instead was installed instead the of the stated SMA female. So make sure you are prepared for that. Also, to achieve a good signal distance you may need to replace the supplied antenna [IPEX / SMA] with a better one. It is recommended that you do. Other than that an excellent module / node that is fairly compatible with some popular firmware and works well.