The ATX 24 Pin 90 Adapter adds a number of possibilities to how users can install the main power connector to their motherboard from the PSU. It makes it so that the 24 Pin main power cable can be installed to the motherboard at a 90 angle, making it so that builders no longer need to wrap/fold the cable up and back over the motherboard to make the connection. This change in angle gives the main power connector more direct access from behind the motherboard, thus reducing the amount of cable needed in front of the motherboard tray.