Storite 2Nd Hard Drive Bay Caddy 12.7Mm Pata/Ide To SATA For Laptops - 12.7Mm - Expand Your Data Storage On Your Laptop 2.5 Inch Internal Hard Drive Enclosure Brand new and high quality. Add a second hard drive to your laptop using your laptop's optical drive. This is a great solution for those that want to add a second hard drive in their laptop. This device/caddy will fit in a "standard" CD/DVD/optical drive bay found in laptop computers. Simply pull out your CD/DVD drive and replace it with our optical bay hard drive caddy. This is a good working adapter and is guaranteed. Supports hot swapping, plug & Play. Like a primary HDD, fast & reliable connection. No cables/PSU/software driver needed. HDD Interface: SATA. Laptop/ mother board interface: IDE / PATA. Fits for 12.7mm SATA interface hard drive. Simple installation : remove CD-ROM drive and plug the adapter (plus hard drive) in slot. Size: 12.8cm x 12.8cm x 1.2cm - 5.04inch x 5.04inch x 0.47inch.