The Kingwin Internal Hot Swap Racks are convenient caddy units designed for 3.5-inch SATA drives. With a sleek black color and a 5.25" slot interface, these caddy units allow for easy installation and hot swapping of hard drives. Made in Taiwan by Kingwin, these units provide a reliable storage solution for your computer setup. Perfect for those looking to quickly switch out their current hard drives with a compatible unit, these internal hot swap racks offer a seamless integration into your system.