I ordered this caddy case for my Dell XPS 15 L501x laptop. I was very eager to see how it works, so as soon as i received it, I started installing my original HDD (Samsung 7200 rmp 650 GB came with laptop) into this caddy. My main drive bay already has Kingston SATA3 SSD 120GB.
Installation was very easy, however when i started my laptop it failed to boot and the caddy LED is glowing red (BIOS detected the drive in the caddy). I thought that it could be some loose connection, so i removed and reinstalled it, but no luck. I googled my issue but no one seems to have a similar issue with Dell XPS.
Then I suspected my old HDD (Too many positive reviews for this caddy, so didn't bothered to suspect it), so i removed my SSD and placed in this caddy, bingo, the LED turned blue and everything started working. Now my main drive bay has original HDD and caddy has SSD.
Any way i have to find out if this is an issue with caddy or just bad installation, so i dropped one start. Apart from this, only small -ve point is that the screw that should hold the caddy on the laptop is not aligned properly, so i had to duck tape it.
My piece of advice to anyone buying this,
1. Check if your DVD bay is 12.7mm, if not try the 9.5 mm caddy.
2. If the LED on the caddy turns red when you start up, do not continue, just stop it and use a different drive. You might save your HDD from crashing (mine crashed, of course I recovered it.)
I'll update this review, when i find the actual reason behind the failure to interface my HDD.
------------- Update -----------
Tried with HDD in the caddy case again, but didn't work. The LED turned RED as soon as i fixed my HDD in the caddy case. So went back to my original configuration (SSD in caddy and HDD in the main slot) and everything works fine with SSD as primary OS drive. Not sure if its an isolated problem.