Specification: Certification: CE Origin: Mainland China Type: PWM Controller/HUB Colour: Black Material: ABS Interface: SATA, 3PIN Cable length: 3PIN: 170(±10) mm; SATA: 500(±10)mm Size: 46x22x9.5mm/1.81x0.87x0.35inch Weight: 15g Key operation: Click the M key to switch to the next lighting mode, which can cycle through the controller's built-in lighting modes; Click the S key to switch the light change speed, there are 8 gears that can be switched in cycle; Press and hold the S key for 4 seconds to turn off the lights, and then press and hold the S key for 4 seconds to turn on the lights; Click the C key to switch to other light colors or light reverses under the same formula. Press and hold the C key for 5 seconds to switch the light brightness. There are a total of 6 levels of brightness that can be switched in descending cycles. Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 x  ARGB Controller