I have a HD caddy and a module for an IDE drive that fits the module bay, usually used for the CD drive for a Dell Latitude D810. The module also fits D610, the caddy DOESN'T. The D810 will boot from the 2nd drive, so these 2 items allow great flexibility and storage possibilities for the D810. Will ship both for $25 blevins 'at' sisna 'dot' com. Steve