Use the gray ones for your Internal ssd or hhd. Use the3Gbps (blue) for optical drives. If you are using more than two hard drives that are 6Gbps then connect to the ( navy blue) connectors.
Use the gray ones for your Internal ssd or hhd. Use the3Gbps (blue) for optical drives. If you are using more than two hard drives that are 6Gbps then connect to the ( navy blue) connectors.