What can I say?
The rails should have been included with QNAP rack servers. The locking system is effective, unlike the old screw-on rails with cage nuts, which are very tedious when you're on your own to install it.
Unfortunately, the quality leaves something to be desired: two screws weren't tightened properly and, when I tightened them, one broke off, jammed in the screw thread and the nut jammed in the telescopic part. I didn't want to send it back because I really needed it, but the repair was really laborious. Fortunately, the rails slide well. Still, the price is excessive considering the finish.
































