When you're installing a new SSD or HDD drive, there are two primary types of connection: molex and SATA. Molex connections have four large pins, which are shaped similar to the ground prong on an AC cord. SATA connections, on the other hand, have a flat, 15-pin design that looks much more advanced.Nov 30, 2019
Are Molex connectors still used?
Basically since around 2006 IDE and their molex powered devices are zero. And everything now is now SATA power. Motherboards have no IDE connectors on them no more, and any DVD drives and hard drives you buy all come with SATA power connectors and no more Molex support.