The ATX2024FM 20 to 24-pin power supply adapter provides a cost-effective way to connect a 20-pin compatible motherboard to a power supply with a 24-pin connector. The adapter lets you use a newer 24-pin power supply with an older 20-pin motherboard. The StarTech.com Advantage – StarTech.com’s adapter cable converts your existing standard 24-pin ATX power supply to work as a 20-pin ATX power supply – Easy to use and install – Backed by StarTech.com’s lifetime warranty