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

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

Oh these are great for adding a inset for your rack! Just be mindful of how much weight you add to them.

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.

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.

exactly what i ordered

I used these to offset some patch panels in my server rack. They work great and help keep things looking clean. However, I DO NOT recommend putting anything heavy on these. The metal is too thin for me to feel confident hanging anything heavier than a shallow/consumer network switch

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.

I wish I had known about these years ago. They're perfect for my custom TV cabinet server rack. I got lucky where the top two U's were clear of the metal pegs, otherwise these Z-shaped brackets wouldn't be aligned. I reversed them so my patch panel and switch can be recessed into my cabinet so my SFP modules don't bump into the cabinet door.