Masione 12.7mm SATA 2nd HDD HD Enclosure Hard Drive Caddy Case Tray, Universal for 12.7mm Laptop CD/DVD-ROM Optical Bay Drive Slot (for SSD and HDD) 100% Brand New 12.7 mm-thick caddy. This 2nd Hard Disk Drive Adapter that gives you maximum storage. 12.7 mm-thick Combo/SuperDrive with SATA interface. PLAIN FACE PLATE; HDD Interface: SATA; Laptop/Mother Board Interface: SATA; It enables you to add a second notebook hard disk drive to any modular bay.