How to wire the LPT and COM port headers on a motherboard? - Super User
FRONTX - Serial Internal Cable - connect to motherboard header (pinout)
Industrial 3.5 Inch SBC Motherboard With Intel i5-3210M/1037U/i3-2375M/i5-3317U CPU PCI-104 - AliExpress
Amazon.com: Motherboard USB Header 20-Pin/19-Pin to USB 3.1 Type-E A-Key Adapter for USB 3.0 Type-C Front Panel Socket (2pcs) : Electronics
serial port - 15 pin COM Header on motherboard - Super User
Amazon.com: StarTech.com Motherboard Serial Port - Internal - 2 Port - Bus Powered - FTDI USB to Serial Adapter - USB to RS232 Adapter (ICUSB232INT2) : Electronics