USB-to-serial adapters are available for old peripherals. DB (D-Sub) Connectors and COM Ports A serial port on a PC is a male 9-pin connector (DE-9 D-sub). Early PCs had two 9-pin connectors or ...

Digital audio is also an option via HDMI and DP. What sets the Mini Air12 Lite apart is the 9-pin expansion header on the ...