Nimitz 2nd HDD SSD Hard Drive Caddy for IBM Thinkpad T40 T41 T42 T43 T60 T61 Ultrabay Slim Add a 2nd drive to your laptop by replacing your optical drive Works in optical drive bay of IBM T40 T41 T42 T43 T60 T61 Works with 2.5" SATA drives with heights equal to or less than 9.5mm (also compatible with 9.5mm SSD) Plug & Play, Supports hot swapping and BIOS password protection