brand new and high quality This Hard Drive Adapter lets you add a second hard drive to the laptop systems. With a second hard drive, you can quickly store and back up critical data. Add this caddy to your laptop to give you another hard drive. Simply remove your CD/DVD-ROM drive and put the Caddy (with the added hard drive) in its place... This is a good working adapter and is guaranteed. brand new and high quality 9.5mm thick Support:SATA Support hard disk:2.5 HDD, SATA,SATAII SDD Size:129mm*128mm*9.5mm How to use: Unpack the New drive, lift the adapter retaining for latch, the screw to the hard disk Insert the drive into the Adapter at an angle Slide the drive into the connector until it locks into place Lower the adapter retaining for latch until it snaps closed Compatible Models: Laptop with a 9.5mm thick DVD-ROM NOTE: As different computers display colors differently ,the color of the actual item may vary slightly from the images,thanks for your understanding. Size:PLS allow 1-3 for cm difference due to manual measurement.