C2G - Power cable - 4 pin internal power (5V) (M) to 4 pin ATX12V (F) - 1 ft - black, yellow
ATX POWER SUPPLY TO PENTIUM 4
Upgrade to a Pentium 4 motherboard without buying a new power supply with the Cables To Go Pentium 4 Power Adapter Cable. This adapter cable allows you to connect a standard 4-pin Molex power connector to the special onboard 4-pin P4 power connector.