and 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. 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. Support: SATA Support hard disk: 2.5 HDD, SATA,SATAII SDD Caddy Thickness: 12.7mm How to use: Unpack the New drive, lift the adapter retaining latch, the screw to the hard disk Three channels are optional for different branded laptops as the picture shows Insert the drive into the Adapter at an angle Slide the drive into the connector until it locks into place Lower the adapter retaining latch until it snaps closed Color: black + silver Material: ABS + metal Product size: 12.7*12.7*1.27cm Package Contents: 1* Second HDD caddy 12.7mm 1* Screwdriver 1* Baffle Only the above package content, other products are not included. Note: Light shooting 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.