Hi, I've been searching for a bus powered 2.5" caddy, but with 2 bays, not 1. My current laptop is an old unibody macbook pro which I have removed the optical drive for a second SSD. I then also plug in a bus powered travel drive for work as and when I need it which I can use whilst on the road. My predicament is that the new retina laptops don't have an optical drive to replace... That and they only have 2 usb3 ports meaning that if I was to plug in both of these drives as separate usb3 drives I wouldn't have anywhere to plug in other usb devices (iLok, etc). There also don't seem to be any bus powered thunderbolt caddies, where as I can get SATA3 usb ones for £15... As I'm needing about 2tb of eternal storage, I'm not even able to just buy a bigger SSD. If there were 3 usb ports, with 2 next to each other I wouldn't worry as I'd just plug 2 usb3 drives in, with the third for everything else. :-/ Are there any thunderbolt/usb3 2x2.5" drive caddies which might be what I'm after? (I guess 3x or 4x might also be good, but I expect power might be an issue alongside size and portability) Or perhaps I've missed something that might be a solution? Thanks!