Description: This is a switching/control/power saving solution for hard disk storage devices with multiple SATA interfaces in a computer chassis. It is very convenient to start/stop/change hard disk, CD-ROM, DVD-ROM and other STAT devices built into the computer chassis. It is equipped with four individually controllable power connectors that allow you to control the power to each device individually. This is a hard disk power saving device that can reduce the loss of power-on time of SATA devices when they are not working, thereby protecting the hard disk and extending the service life, while reducing the host's power consumption and saving energy. < br /> Features: 1. Supports 4 channels of SATA device power, each channel can be controlled separately. 2. Controls the high current power management chip with self-locking button and controls the power supply of four SATA devices (5V and 12V). The maximum single-channel controllable current is 4900 mA. 4. Each channel has an independent indicator light. 5. Support PCI or PCI-E baffle. 6. Large 4P power input and standard ATX connector output. Specifications: Material: PCB Color: red Switch mode: power management chip Working current: 3000mA*4 Working state: LED green light Motherboard size: 12*7.5*2.5cm/4 .7 * 3.0 * 1.0in Cable Length: 50cm / 19.7in Weight: Approx. 153g Installation method: 1. First plug the ATX connector of the corresponding 16PIN output cable into the controller. 2. Turn off the computer that needs to install the controller, unplug the power supply, open the cover, install the controller in the free PCI or PCI-E position, and secure it with screws. 3. Remove the SATA power plug or large 4PIN plug from the chassis and plug it into the controller's SATA plug and large 4PIN power input jack. 4. Connect the SATA 4-way output connector to the SATA power connector of the device to be controlled. 5. Register the corresponding control equipment 6. Cover the computer case cover, connect the power supply and turn on the power. Note: It must be turned off before you can use the system. Otherwise, the system may be unstable or the hard drive data may be damaged. Package List: 1 * Switcher 1 * Cable 1 * Chinese User Manual