Best Compute ACER 24 Pin to 12 Pin ATX PSU Main Power Adapter Cable (Premium). Premium quality. Material: UL1007 18AWG; Length: 30cm total length. Converts standard 24 pin ATX power supply cable to 12 pin Acer power supply cable. Compatible with Acer models Q87, Q87H3, Q87H3-AM etc. This is an Amazon listed product.