Features: 1. Suitable for desktop computer optical drive, extended power supply, multiple hard disk control, multiple system switching. 2. 2.5-inch hard disk fixed, decorate the optical drive space on the host. 3. 4 self-locking switches independently control 6 power outputs, each power indicator, 8 solid state capacitors. 4. IDE and SATA 15P two input interfaces, suitable for any power supply. 5. The output uses a 5569 4P interface with a snap-in connector, which is solid and reliable (this interface is used by the motherboard CPU power supply). 6. Desktop optical drive position, 4 * HDD power supply, 2 * 2.5in hard disk installation position. Specifications: Material: Plastic + Metal Power Cable Length: 60cm / 23.6in Size: Approx. 15 * 14.2 * 4cm / 5.9 * 5.6 * 1.6in (As pictures show) Weight: Approx. 464g Package List: 1 * Power Switch 4 * Set Screws 4 * Output Power Cable 4 * Cable Tie