LTE-M1 NB-IoT terminal met 2G fallback ready for the future after 2G sunset with better link budget

The SeaLINK® single-port USB to RS-232 DB9 serial adapter that just works for Windows and Linux

SeaLINK 2203 USB serial I/O adapter has two RS-232/RS-422/RS-485 serial ports for USB connectivity to legacy serial devices

The 2106 USB serial adapter provides a RS-422 serial port that simplifies adding USB connectivity to RS-422 applications

3 dBi Dipole Antenna - RP-SMA Plug Right-hand Thread 2.4 Ghz for SENA Bluetooth products

The Parani-SD1000 is a Class1 type of Bluetooth Serial Adapter has 100 meters of wireless transmit distance.