RF Solutions RFM95W-868S2 LoRa Ultra Long Range Transceiver Module, 868MHz
50.0 MHz TCXO HCMOS Oscillator, 3.3V, ±2.5 ppm, -40°C to +85°C
Sub-GHz Wireless Microcontrollers. Arm Cortex-M4 @48 MHz with 256 Kbytes of Flash memory, 64 Kbytes of SRAM. LoRa, (G)FSK, (G)MSK, BPSK modulations. AES 256-bit. Multiprotocol System-on-Chip.