Use the universal 9.5mm SATA to SATA hard drive caddy to bring you new maximum data storage flexibility. After adding you can speed to backup important applications and key data (Simply remove your CD-ROM drive and put the Caddy which with the added hard drive in its place).Features:Can expand your system and storage capacity with an additional hard drive Modular construction, you can just remove the CD driver and put this in the slot Support installation of 2nd operating system on the 2nd HDD and boot selection The height of this adapter is 9.5mm. Interface: SATA to SATA Material: Aluminum NOTE: Accessory ONLY, HDD not included. Compatibility with:The universal 9.5mm SATA-to-SATA Caddy is compatible with laptops which with a 9.5mm-thick / high optical bay with the SATA interface. Such as MacBook Pro 2010 15" MacBook Pro Core i7 MC723LL/A MacBook Pro Core i7 2.66 15" Mid-2010 MacBook Pro "Core i5" 2.53 iMac Core 2 Duo 2.66 MB418LL/A A1225 Acer Aspire M3 Acer 5810T 4810T 3810T Acer ASPIRE 4810T 4810TZ 4410T Asus G74 series XPS L511X L511Z XPS 14 L401X L402X M1330 XPS M14X M14Z M14X M15X Vostro 3300 Studio XPS 1340 16 Latitude E6520 Precision M4600 M6400 M6500 M6600 SH560 SH760 SH771 LifeBook P8020 S6421 S6420 S6421D S6421E S6520 IBM Lenovo IdeaPad U330 IBM Lenovo ThinkPad S420 U400 IBM ThinkPad T400 T400s T410 T410i T410s T420s T500 T510 W500 EliteBook 2530P 2540p 2560p 2740p U400 U400D U405 U450D U500 U505 Package Includes:1 x HDD Caddy