Description: Uses: Suitable for multiple hard disk control, multi system switching, optical drive, fan, RGB lighting effect and other control and management of electrical equipment in the host. Supports 80mm half height chassis. Interface: The input is connected to the power interface of the host, and adopts the standard SATA and large 4 pin power interface. The output interface adopts a square 4P sockets with a buckle. The buckle interface is firm and reliable, and the square 4P prevents the reverse direction of insertion. The pins are thick and conductive, and each output is equipped with 2 large capacity filter capacitors to ensure stable power output. Convenient: Backlit numbered LED, when the switch is pressed and turned on, the corresponding LED illuminates the number, the can be observed from the side. Features: The convex edge card position design increases the stability, and can be installed in the position of the PCI or PCI-E slots for positioning and refusing to swing. Cable: 18AWG Thick wire core, special wire material, wire length 60cm, standard host power wire color: 1pc yellow: 12V, 1pc red: 5V, 2pcs black: GND. Output interface definition: 1: connect to 12V, 2: connect to 5V, 3 and 4: connect to GND Specification: Material: PC, Metal Size Chart: 8cm/3.15inch Package Includes: 1 Piece HDD Power Control Switch Note: Please allow slightly errors due to manual measurement and different monitors.