This adapter enables ATX power supplies fitted with a 24 pin mainboard power connector to be converted for use with mainboards fitted with 20 pin power connectors.

Please note that the latest EPS PSU specification no longer require computer PSUs to supply the -5v rail. Accordingly, and in common with our competitors products, the white -5v wire is NOT present in this adaptor. This should only be an issue if your older motherboard requires -5v to be supplied, and you have one of the few modern 24 pin PSUs which offer this rail. In such instances, please use the Contact facility (at the top of every page) and we may be able to help further.