What ho one and all,

I want to up-grade the storage capacity on my desktop. The computer is a old(ish) Dell running XP Pro. At the moment, I have a 500 Gb and 250 Gb hdd installed. However, I do have two 1TB external drives that I use for backing up my images.

The plan is to replace the 1TB external bu drives with 2TB and use the 1TB as internal hdd. All drives are 32 mb cache and SATA II.

New hdd all have a larger cache and seem to be SATA III. Will a SATA III fit in the SATA II desk caddy that I use? Will the difference between 32 v. 64 and II v. III mean that the new drives will not operate?

Thanks

Rex