Got a new SATA drive that you need to connect to a system with an older power supply? Here's a solution. This is an adapter is for connecting internal storage devices that require 15 pin SATA power connectors to Power supplies that only have 4 pin molex power connectors. i.e. YOUR DRIVE IS A NEWER SATA, BUT YOUR COMPUTER IS AN OLDER ONE WITH MOLEX. Features a 90 degree connector on the SATA connector to position your cables conveniently out of the way. Warning: Molex connector provide 12V and 5V power lines, but not 3.3V required by some SATA drives. Make sure your drive does not require a 3.3V power connection before purchasing this adapter. Note: 2194 has bigger gauge wire than 8798 Additional Model #'s 225-2194 2194 UPC: 810159011655