Features: 1.8 large-capacity solid capacitors to ensure stable power input and output. 2.Made of thickened and hardened PC high temperature and lead-free SMT, durable to use. 3.Comes with 4 15pin power supply cable, each of them with the length of 60cm, saving time and effort (SATA 15pin standard power supply line) 4.Full black switch, PCB, bezel for better operation. 5.Easy to control 4 hard drives - Can be cascaded and can be superimposed to control more hard disk box devices, such as fans, etc. specification: 8 large-capacity solid capacitors to ensure stable power input and output. Made of thickened and hardened PC high temperature and lead-free SMT, durable to use. Comes with 4 15pin power supply cable, each of them with the length of 60cm, saving time and effort (SATA 15pin standard power supply line) Full black switch, PCB, bezel for better operation. Easy to control 4 hard drives - Can be cascaded and can be superimposed to control more hard disk box devices, such as fans, etc. : Type: HDD Power Switch Weight: Approx. 190g Size: Approx. 12 * 7.3 * 2.1cm Power Cable Length: about 60cm / 23.6in Package list: 1 * HDD Power Switch 4 * SATA Cables 4 * Cable Ties 1 * Screw Note: Please allow slight error due to manual measurement. Thanks for your kind understanding.