I've seen everywhere on the internet about installing a CD-ROM caddy instead of a CD-ROM that holds a second hard drive for laptops and I use to have one in an older laptop at one time but I have never seen one for all-in-one computers. I have three all-in-one computers, two of them have really good high specs but they're only downfall is not being able to hook up a second hard drive internally. At the moment I use external hard drives and even though they're USB 3 they are still not fast enough and I don't like the extra clutter on the desk (OCD issues) Does anyone have any info on these? I would just got the CD ROM drive out and super glue the exterior plate on the outside for looks and hard wire a second hard drive inside but the connector on the Sata connector on the CD-ROM does not match the HDD Sata Connector. Thanks