StarTech.com Server Rack Depth Extender - 2U - 4in / 10 cm - TAA Compliant - Recessed Rack Adapter - Rack Mount Adapter Kit - Network Rack Extender (RDA2U)

These are perfect for open racks when you don't want the patch panel jumper cables to stick out in front of the rack. You simply recess the patch panel and if you have a switch that is rack mounted you can recess the switch as well. This means your connections are protected in high traffic areas. They are also nice in closed racks as well so that your wires don't get squashed by the closed glass door.

exactly what i ordered

It says it's a rack depth reducer/extender, and it does that. The only problem is that the equipment side uses rack nuts, which are a right pain. Fortunately, once you do manage to put them on you won't be bothered again. Sturdy enough for a 1G switch, and puts enough distance between the rack's back door and said switch so that I can actually cable it.

This worked perfectly and saved me sending back a battery back up unit.

says what it does, does what it says. you'll get some sag if you use it in extension mode, I had a spare structural support piece that I put one rackspace below my server on the backside that keeps it level.

Exactly what I needed to fit my NVR into a network rack that didn't quite have enough breathing room in the back.

I got this to extend one rack component out to the back a bit (I could have reconfigured the whole rack since it was length adjustable but didn't want to throw out and re-do a custom made wooden top I had fabricated for it). It works but mounting it is a bit awkward. Plus no matter how you fix it to the rack, it adds just enough thickness so that my component wouldn't properly clear the back mounting bracket anymore. Took a lot of finagling to make that happen. That's its only design flaw as far as I can see. Other than that did what it was supposed to do.

Great product at a reasonable price