100% 9.5mm thick 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 to your laptop to give you another hard drive. Simply remove your CD/DVD-ROM drive and put the (with the added hard drive) in its place This is a good working adapter and is guaranteed. Unpack the drive, lift the adapter retaining latch, the screw to the hard disk Insert into the Adapter at an angle Slide into the connector until it locks into place Lower the adapter retaining latch until it snaps closed Case Material: Aluminum Size: 2.5 inch, 3.5 inch Internal Interface: Model Number: 2nd Hard Drive Support: Support hard disk: 2.5 HDD, , SATAII SDD Compatible Models: Laptop with a 9.5mm thick DVD-ROM Color: black Size: 125*125*9.5mm Specifications: Hard Drive Adapter Add a second hard drive Can quickly store and back up critical data Give you another hard drive Simply remove your CD/DVD-ROM drive A good working adapter Package Contents:1* SSD Hard Disk Bracket Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.