USB connectors are used with Universal Serial Bus (USB) standard ports. USB is an external bus standard that supports data transfer rates of 12 Mbps in its version 1.1 and 480Mbps in its version 2.0.

Did it have a little adapter in the box ... you could take a modern USB-only device and an unholy chain of USB-to-PS/2-to-serial adapters, and have it work as a serial mouse.

io_edgeport name:"Edgeport 8 port adapter" vendor:1608 product:000f num_ports:8 port:8 path:usb-00:02.2-1 In this example, two different USB-to-serial devices are plugged in: a single-port Keyspan ...