SATA 2nd Hard Disk Drive HDD Caddy Adapter for Thinkpad T400 T410 T500 (Accept 2.5"/9.5mm SATA HDD) Plug & Play, Supports hot swapping. Fast & Reliable connection in ThinkPad, just as the primary HDD. Fully integrated into ThinkPad laptop, no cables/PSU/software driver needed . Compatible : ThinkPad T400/T410/T500, R400/R500, W500/W700 and ThinkPad X200 UltraBase.