VEVOR 12U Open Frame Server Rack, 23''-40'' Adjustable Depth, Free Standing or Wall Mount Network Server Rack, 4 Post AV Rack with Casters, Holds All Your Networking IT Equipment AV Gear Router Modem

The VEVOR 9U Open Frame Server Rack, 23''-40'' Adjustable Depth, is a solid choice for organizing networking equipment! This 4-post, carbon steel rack supports up to 500 lbs when floor-mounted (200 lbs at max depth, 150 lbs wall-mounted) and adjusts from 23 to 40 inches deep, fitting various servers, routers, and AV gear. The open-frame design ensures excellent ventilation and easy access to ports, while the included casters make it a breeze to move. Assembly is straightforward, taking about an hour with the provided 145 M510 screws, 10 M612 cage nuts, and other accessories, though a power drill is recommended for the non-self-tapping screws.The top shelf adds useful storage for tools or monitors, and the corrosion-resistant finish holds up well. My only minor gripe is the spot-welded caster nuts, which can loosen under heavy loads (reinforce if needed). The top cover doesn’t fully extend at deeper settings, but this doesn’t affect functionality. Priced around $70–$80, it’s a great value compared to pricier brands like StarTech, offering robust build quality for small offices or home labs. Highly recommend for a reliable, space-saving server rack!

For those having difficulty assembling this 4 post rack: Yes instructions could be better on a couple steps, but I'd guess you also have difficulty assembling most items overall anyways. Details are in the pictures on which way to assemble this 4 post open rack. Pay close attention to the pictures at the ends of the pieces, as they are shaped differently and if you note the position correctly, you won't have any issues at all.NOTE: Do not try to drill a hole with the electric drill you will need to use, once the threads are cut immediately stop when the head of the screw touches the metal.Items to note:1) The height of whatever 4 post rack you are looking at does NOT include the wheels. I bought the 20U model which stated 38.7 inches, and with the wheels on comes in at just under 41 inches.2) Weight capacity says 500lbs. No way this is even close. Instructions as another has shared clearly says 200lbs max.3) You are going to need an electric drill with a #2 bit. I used a Milwaukee M12 1/4" impact with a magnetic 4" bit extension and it worked fine. Set on power setting 1. Not one thing can you use a regular screwdriver when installing this, except to mount the 2 included shelves at the end. So if you don't have an electric screwdriver I would recommend the Milwaukee M12 series or similar.4) You don't get one of those thin flat cheap wrenches for putting on the wheels. If you want to put them on it's a 9/16 or 14mm open ended wrench. Snug is all you need for the wheels.5) The first step is the most important one, if you intend on extending the depth for you 4 post open rack needs. Instructions mention, but not a lot of detail. I set mine at 32in deep, which leaves 9 open holes on each end as you assemble the depth rails on the first step. Adjust accordingly for your depth needs.6) Also note, if you need the depth to be over the 23" default depth, the top metal piece isn't going to cover the entire top. I put mine covering the front of the rack which left me with a gap in the back. Screw holes still match on one end, and you could easily modify the back where it ends if you want to. But there will be an open space on one end since they don't know what depth you need if you want to adjust.7) Wheel thread size is M10x1.5 if you want something more sturdy instead of the plastic ones supplied. So far I haven't seen an issue, but for those putting up to the 200lb limit you might to do something different. Your call.8) Once you fully assemble all parts, gone through all the steps - just before you mount a shelf - do the following: Instructions say to put 2 screws in each expandable rail end (remember the first step mentioned above). And you did to get this far. Now that you have extra screws available, go add 2 more screws to each end of the expandable rail, and another set in between the now 4 screws you have on the expandable rails at each end(these you set to determine the depth of the 4 post open rack on the first step in the instructions). When you get done with adding these screws you will have 6 at each end of each rail - so 12 per expandable rail X 4 = 48 screws just in these expandable rails. Why? It adds a lot of strength and tightens the whole unit up nicely! No you won't get anymore weight, but you will see the difference.Overall I can't complain about this 4 post rack. This is NOT something you would use to mount up 3K+ UPS's, servers, storage, etc into. I mean, look at the price! There's a reason enterprise data center racks for business start at around $2k each and up. This isn't the same thing so expect what you paid for, not something for on the cheap. Anyone who's worked in IT, would immediately see the difference here.But for home use with up to 2x 1500 UPS in the bottom with home grade equipment racked up, it fits the job just fine! Slap a Monitor/Keyboard/Mouse on top and you're ready to go! I've already got some extra shelves coming along with some patch cables in the right length to tidy up everything on a single rack that roles when I need it to. Oh, and don't forget the 19" PDU so you can reduce down the wiring nightmare that some of us get into! :)Stop thinking about it and just order it! If you need something more heavy duty then spend the money and move along, cause that is a different class of need than trying to make this work for the real heavy stuff. Good luck!

The frame is solidly built. Corner stiffeners work quite well to stabilize it. Adjusted mine to 32” depth, so top cover (not adjustable:-) doesn’t cover all, but a piece of plywood on top would fix that that.Only problem is the wheel attach. It looks like it’s a spot-welded nut. I’ve only loaded to 80lbs and one has already broken loose. When done, load will be close to 180lbs (it’s rating) so I will have to reinforce somehow.Update:Three wheel attach nuts have failed. Not even fully loaded. It looks like they punched out a hex hole for the nut to sit in then spot welded it! If it were a full weld, it might have worked, but just a round clearance hole with the nut spot welded on surface would have been stronger (would have frame support stress rather than spot welds). Now I have to use two large pattern washers to compensate for the hex hole.

This is probably the worst thing I bought from Amazon.ALL SCREW HOLES ARE UN-TAPPED. YOU HAVE TO TAP EVERY SINGLE ONE!Some are even in cramped locations that you didn't anticipate BECAUSE IT IS NOT IN THE MANUAL! TOO LATE WHEN YOU FIGURE IT OUT YOU HAVE TO!To assemble this $100 frame which isn't even that sturdy I damaged my $400 tool just to be able to push and drive every single screws in obscure locations. Why?ALL SCREWS ARE PHILIPS HEAD. They easily slip when driven by a electric screwdriver. Make sure you wear proper PPE in case you get stabbed by your own screwdriver. Don't even think about using manual ones. You can't. Too many screws. This also means you can't just easily disassemble and return it in case something is wrong. I spent about 5hrs just to assemble everything. You don't want to go through this nightmare again do you?Apart from the tapping horror, this cage is also poorly designed with inaccurate info.The height on the advertisement is poorly rounded. That height also does not take account of the wheels unlike what's shown on the picture..It is marketed as adjustable depth but really it is just designed for the shortest depth. The top cover won't fit most other depths and becomes too flimsy if you don't support it from all sides.The vertical mounting is only single depth, which means you can't have screws to secure your servers if you also need to install rack shelves/rails. The whole thing is a bummer in this aspect. Not really usable.