Serial Advanced Technology Attachment is the best connection type, and standard on all motherboards. Most motherboards will have between 4 and 6 SATA connections for SSD?s, and NVME?. SATA is typically for internal devices such as hard drives, and SSDs, but optical drives that are still being produced will also support SATA. SATA does have an external interface connection, but USB-C is typically preferred for connecting external drives to the computer.