Mini 4 Pin port connects to motherboard (NOTE: its mini 4 pin , not standard 4 pin), Right-angle SATA port connects to hard drive; Connector A: ATX 12V mini 4 pin (NOTE:it is mini 4 pin, please check the image 2nd about the dimension of mini 4 pin), Connector B: 2x Right-angle SATA (Note: its right-angle, not straight.); Compatible with Lenovo motherboard with mini 4 pin port such as:M410 M415 M510 M510S M510A M610 M710 B415 B250 M4900K T4900D M4601K M2601K M6201K M4600K ThinkCentre M710 M720 M910 E75; Material: 18AWG, Length:18inches(46cm),Between 2 SATA: 8 inches(20.5cm),Quantity: 2 pieces; NOTE: The ATX connector is mini 4 pin , not standard 4 pin, please make sure of the ATX connector type before purchasing and refering to the image 2 about the size of mini 4 pin connector;