Provide different interfaces and form factor to expand peripheral functions
[ASRock Industrial Exclusive]
USB to 4 COM ports
M.2 Key B-M 3052 to dual LAN
M.2 key B-M 3052 to dual LAN with PoE
M.2 Key E 2230 to 1G LAN with PoE
M.2 Key M to Key B with SIM socket
PCI Express to 4 ports 2.5G PoE
4 ports USB 3.2 Gen2 expansion card