BG96 UNO to PCIe board provides UNO-to-PCI adapter board, which allows the telecom module to be used UART or USB interfaces to support 4G LTE / NB-IoT connection. The adapter board supports Quectel EC21 4G/LTE and Quectel BG96 NB-IoT modules.
Please refer Quectel web site for BG96 module
https://www.quectel.com/product/bg96.htm
UNO to PCIe adapter board specification:
One mini PCIe interface for specified telecom modules
Quectel EC21 miniPCIe (4G/LTE)
Quectel BG96 miniPCIe (NB-IoT)
ZTE ME3616 (NB-IoT)
Features
Support UART (via Arduino) and USB interface
Arduino UNO Compatible Interface
UART supports Tx/Rx/CTS/RTS signals
UART supports 1.8v or 3.3v voltage
One mini SIM card slot
One RESET button
One telecom module status LED
Three LED controlled by GPIO
Useful Link:
Adapter Board User Manual
Schematics and Layout