Rackmount Sliding Rails - Kit for 2U-8U Chassis (Adjustable 18" to 25" Depth) 2 or 4 Post Mount Sliders for Server Case (Compatible with Any Standard Rack, Cabinet, Computer Enclosure) Tupavco TP1821

These were a great non-oem option for my supermicro 2u nas.I was worried about the weight at first, but they attached easily and feel strong when pulled out.The slide with little reaistance and won't return without help so no smashed fingers.I'm using a homemade rack (2x4s and posts), and they fit well.Great value for me.

The media could not be loaded. These are great rails, tough, strong, sturdy, well designed. Contrary to what some say, they don't cause case to be offset in your rack system, the case you pair with your rails causes you to be offset. Buy the right case with the right mounts and as you'll see in the pic/video it fits perfectly. The case I bought was the rackchoice 2U case (https://www.amazon.com/dp/B0BN1XBL2R). This case had the exact same threading and holes lined up perfectly with these rails. Though I suspect all cases will line up perfectly as the holes on the part that screws into the case are slider holes so they pretty much line up with anything.These rails provide a nice click at the end (which you can see in the video) that holds the case firmly against the rack. But what's nice with cases like this is there are extra holes like in my video which also allow me to screw it in if I'd like to for security reasons, etc.The reason I deducted one star is because the hardware they sent seems to be lacking the necessary M5 nuts needed for the mounts. I bought two sets, both seem to be missing this, but perhaps I'm the one missing something. Fortunately I ordered these M5 nuts that screwed onto their hardware per their instructions just fine: https://www.amazon.com/dp/B0CNCKPC45Since you're buying the nuts anyways, I found better bolts than what they offer that take a little shimmying to fit the head of them through the opening provided, but they mount the rails better than the ones they sent, they clear the slides no problem and they also work with these same M5 nuts. Here are the bolts: https://www.amazon.com/dp/B0DZ2H7N25So for $15 in additional hardware, these are the best sliding rails I've installed for any of our clients. I didn't have to drill my own holes in the case, I didn't have to do any weird setups, and the way they mount allows the case to sit flush against the rack as if the sliders weren't there (see picture/video). People have complained they are too thick, but they mount perfectly behind your rack without any sticking out...so if a case will fit on your rack, it will fit on these rails. I think people failed to tighten them down while holding the rails tight to the outside. I did that and zero part of the mount sticks out. Honestly I think the easiest way to solve this, and I did this for the 2nd pair, is tightened them to the rack, then hit it with a rubber mallet afterward which scoots it to the outside and wala, mallet magic.

The rails are easy to assemble and install and cover a wide depth range for many different racksHowever, on the 3 different server chassis i tried(siverstone, chenbro, and iStarUSA) it was impossible to get the rear of the server to clear the front of the rails where they mate with the rack making them useless.This is because the rails are too wide by about 2mmThe upside of this is that you could effectively turn a single 4 post rack into two, by having servers hanging off both the front and rear of the rackThere is a possibility that my ProConnect 27 U enclosed rack is off spec, but i went through the trouble of loosening as many screws and bolts as possible in the hopes that i could massage things into place, and i have other rails that were not too thick to slide in servers, but were too long to close the door on the rack.Update: I've come across 2 server chassis that do fit within a rack using these rails with alot of effort, both from i-star(one of them was the istar listed above), however, it does require uncomfortably slamming them into the rack several times to get them to slide in and out without grabbing a winch, do not push them all the way in flush with the rack ears until the rails have been warn in properly, you'll genuinely need a winch or something with alot of leverage to get them to grind back out.Once it has been warn in it mostly rolls smoothly, not to the level of the dell readyrails but better than i would have expected after hearing the grinding from wearing them in at first.With the silverstone case i have, there is just no way to get it to fit no hammering or chizling can change that if i could maybe put it in the center of the rack maybe the ears could flex enough as the ears are only supported(from the sides) at the top and bottom

These rack rails work great for a shallow depth rack mount device. Tolerances are tight and once installed the rails worked smoothly.

I found it impossible to install using the hardware and instructions provided. Maybe I was missing hardware? Gave up and installed it using my own hardware only to find it was too narrow for my rack and/or case. It looks/feels like it would work well if it would actually fit in my setup.

I thought I'd give these a try with a full size 29" depth rack... they fit, but just barely. The reach L-bracket is as far back on the rail as I could get it. Definitely not ideal, and not sturdy enough to hold anything of significant weight at that point - and they won't slide out very far. The product page does say these support up to a 25" depth. Even at 25", these still wouldn't extend out as far as some others. These would work best on smaller depth racks, allowing the mounted device to slide out far enough. Anything else and these are likely only good for smaller devices, like a switch or similar. They are well greased though, and the sliding operation is nice and smooth. They do seem well built, but I think you'd need about a 20" depth for these to work best. Also, it doesn't seem mentioned on the product page anywhere but the mounting hardware (screws) that come with these are built for M4 cage nuts rather than M5.

These are too small to be a strong mount. On top of that they don't pull out far enough to be useful. Using a Rosewill 4U case.