A VGA splitter cable, often referred to as a VGA Y-cable, is a cable that has one male VGA connector on one end and two (or more) female VGA connectors on the other end. This design allows you to connect multiple monitors or displays to a single VGA output from a computer or other VGA-compatible device.

The purpose of a VGA splitter cable is to duplicate the video signal from the source device to multiple displays simultaneously. This can be useful in scenarios where you need to show the same content on multiple screens, such as in presentations, classrooms, trade shows, or entertainment setups.

It's important to note that VGA splitter cables simply duplicate the signal, so all connected displays will show the same content. They do not enable extended desktop functionality or independent screen control. For those purposes, you would need additional hardware, such as a VGA splitter box or a video distribution amplifier.