JINGCHENGMEI1U Universal 4-Post Rack Mount Server Shelf Rails for Dell Compaq HP IBM APC - 16.5-29.5 Inches Adjustable Depth-110 lbs Capacity (16.5-29.5" Rails)

I am using a Cisco 4500-X and it would not work with the brackets I had originally. It has a lot of sage but after I used the product it solved all my problems. I have my rack set to 29” and it worked amazing and was very strong. It was easy to put together with all 4 sections and the 12 screws.The metal is very thick compared to others that I have used. It was a bang for the buck in my opinion.

Does what it says, A little tricky to fit a rack above it but with a little adjustment it works.

I got these shelf rails to support a custom shelf I made for Raspberry Pis and similar SBCs. Putting them together was straightforward and they're quite secure once installed. The length is quite flexible, allowing any size between their minimum and maximum, not just several discrete lengths. I would get more if I need an additional shelf.

too small for my rack. I thought they were going to be bigger thats my fault. Put the fronts in and since I don't have sides on my rack the bend out.

I used these for a battery backup that didn't come with rails. They're strong and holding a very heavy UPS with no issues.

At 29" you only get 2 screws in.

These thing drooped holding a power vault

Doesn't support the weight as claimed, metal is far too thin.