Istarusa Istarusa Tc-rail-24 - Sliding Rail Kit - Steel - Load Capacity: 85 L

The 4 post that I bought has an adjustable depth. The two Rosewill and one Chenbro chassis all work well with this rail setup (mounting point options are plentiful too). My only complaint is that it catches on the rack sides ever so slightly, requiring a bit of work and force to get them to extend, but they’re solid and smooth otherwise. For a full rail kit, they’re proving to be very handy though, so I have three so far.

Mounting system could be better, but it's cheap sturdy and gets the job done.

The mounting brackets for these are absolute garbage. The square washers don't fit snug enough to hold the brackets stable against the rack rails, and you can't just make the screws tighter to fix it. Wasted my time waiting for these, and now I'll have to deal with finding something else and sending these back. Junk.

The rails work well, I saw lots of reviews about how they are hard to install, but I didn't find them that difficult. The hardest part was figuring out what rack holes to place them in so my server was flush with the unit below it. They are more work than pre-configured rails and there are a handful of small nuts/bolts that I dropped in the process, but for something so modular it's totally expected. I did, however, get the 24" for my RSV-4000U and I should have gotten the 26" for the deeper chassis. They work, but the last inch or so does not withdraw from the rack. I purchased the 26" and will swap them out.As far as mounting goes, I never saw a good picture, so I have taken a few that should help people who are using these. I installed my 4U chassis in rack units 3 through 6. The brackets have 4 threaded holes, I had to screw them into the two center holes on the bracket and center it directly between 4 and 5 for my server. I expect this will be the case for all Rosewill 4U chassis. The bolts that came with it were threaded the same as the chassis, so no need for additional bolts to secure the inner rails.

Bit flimsy, the tolerances aren’t perfect on them either. They’re fine once installed but you get what you pay for in this case.

Worked great for "that rosewell chassis" (that appeasement everyone has?). They slide nicely. The only hard part of the install was lining up the brackets on the chassis.

The mounting system is absolutely terrible and cheaply made. If you try to stack multiple cases together, there's zero gap, because the mechanism won't stay exactly where it is. So the cases get stuck together, literally sitting on top of each other like there's no rail, and cannot be opened/closed without significant force. It damaged all the cases.Hence I had to install them with this awkward configuration leaving some gap between the cases so they can open.Also the cases won't stay shut, they slide open by themselves. And since I had to install them in this weird position, I lost the wholes to bolt them in. So I had to buy some really strong magnets to hold them shut.I absolutely regret buying this. If you have a single case, it might work though... Don't recommend.

This was my first set of server rails. I used them to mount a Rosewill RSV-L4000. There was a learning curve, but in the end I figured it out. The instructions could be better, but now that I've figured the rails out, I'll probably order another set.One piece of advice for other newbies, rack your server first, before filling it with components and drives. It gets heavy and unwieldy.