The Quectel LTE module is compatible with UMTS/HSPA+ UC20 module. It has operating temperature range from -35°C to +75°C. Its baud rate reach up to 921600bps and has RTS/CTS flow control. It support USB 2.0 HS (slave only) interface, PCM digital audio interface. I2C interface is supported and has SIM detection. It has 29 x 32 x 2.4mm dimensions