SATA Hard Drive Power Cable Specifications: PH2.0 small 4pin power connector
SATA Hard Drive Data Cable Specifications: 7-pin data interface
K1 cable connection to SATA 3.0 hard drive is shown in the following diagram.


Loosen the screws on the back of the K1 board with a screwdriver, insert and install the SSD, and then tighten the screws with the screwdriver again.
