Before USB ports became standard on PCs, several devices connected through a serial port. They're obsolete in many ways, but ...

Two DB-15 connectors are widely used. The larger, two-row female DA-15 is the game port on a PC, and the smaller, three-row, female high-density DE-15 is the VGA port. See VGA and plugs and sockets.

Although USB has set standards, you can find some odd cables and ports out there. So, why do some USB connectors have small ...

[Mike Lu] likes to add serial ports to his routers to use for debugging ... the four unused wires on one of the RJ45 Ethernet connectors. This would allow him to interface with the necessary ...

Before the introduction of USB, electronics relied on various legacy connectors and protocols, such as serial ports, parallel ports ... efficient option for connecting various devices to your computer ...