ZXUY Hard Drive SATA 2nd HDD Caddy Tray for Unibody 9.5mm Laptop CD/DVD-ROM Drive Slot (Replacement Only for SSD and HDD) It can be made part of RAID array and Bootable.Plug & Play, Supports hot swapping Compatible with: 2.5"/9.5mm SATA HDD or SSD, Hard drive NOT include.100% Brand New 9.5 mm-thick caddy. Package Content: 1x 2nd HDD Caddy  4x Hard Drive Screws and 1pcs screw driver Fully integrated into laptop, no cables/PSU/software driver needed.Fast & Reliable connection in laptop, just as the primary HDD High performance SATA hard drive providing up to 500GB of additional internal hard drive space.