An Active AT/XT-to-USB converter

An Active Converter refers to a computerized device designed to fully convert a keyboard's protocol and port, typically into USB. Commercial offerings can be found online, but they are often sold at a higher price compared to Passive Converters.

Some users may prefer to make their own converters using off-the-shelf hardware as an alternative to commercial adapters.

Firmware, that can be flashed onto either a DIY converter or certain existing commercial solutions, exists. This may provide support for additional protocols, non-standard scancodes and hardware-side customization. Along with the firmware offering, it is commonly described how to make a DIY adapter yourself, or where to purchase a commercial offering.