RackChoice 2U Server case Micro ATX Compact Rackmount 2 x 5.25 Chassis Support ATX PS2 PSU with 120mm Fan on top, USB3.0 with 2.0 Adapter

The case is built well. The bays for the drives and fans are removable for easy installation of drives and fans. The included fans plug into the power supply. You need to buy fans that plug into a motherboard if you want to go that route. Power supply is not included. Regular/Standard ATX power supply fits. MATX motherboard fits well with a little space between it and the drive bays and power supply. Not sure if you could fit 4 HDD drives. But you could probably fit 4 SSD drives. I am using Nvme drives. The case mounted on my rack case with standard wholes and screws.

Pros: vents on top for power supply, racks well if you stack it on another server that's racked in with rails, decent build quality cons: not much room, I'm currently doing this one with 6 SSDs and it's a little cramped with all the wiring. If you're using more than a single large spinning drive, i wouldn't recommend this chassis. Default fans are kinda cheap, buy 2 80mm Noctua fans they're much quieter hard drive mounts are really built for larger spinning drives, SSDs don't have much mounting options outside of just laying them inside the chassis somewhere

I am giving this 5 stars due to the build quality and the price. That is not to say its not without its flaws, but these are not issues I had to deal with in my build. Good: Price! Quality Build. Cons: A couple of gripes, but any of the changes I would recommended would likely drive the price up beyond its sub $100 price point. Gripe 1.) There are two, 80mm fans at the front. These use Molex adapters (Blah!). I already planned on replacing these with a pair of Artic or Noctua fans for better performance. The location of these fans make it impossible to service them without taking the system apart. They sit between the front vent and the HDD Trays, but tucked under a lip of the front of the case. So to get access to the fans, you would need to remove the Hard Drives Gripe 2.) Same thing with the filter, it is tucked away in an out-of-reach place. My simple fix for this was to remove the foam filter and set it on the outside. The airflow holds it in place but I am going to 3D print a bracket with magnets to keep it there. Meh 3.) Less of a but something to be aware of. The front HDD Trays: This is a shorter chassis (What I wanted) but if you are planning on installing full size HHDs in the Trays, you will have almost zero tolerance between the SATA/Power connectors and your Motherboard. Its VERY tight. If you are going to use SSD's this may not be as big an issue. And if you are like me and not planning on using the trays at all, then hey no issues. I plan on using a couple of 5.25 bay HotSwap HHD Trays from Icy Dock, and there is plenty of room behind those and the Power Supply. Overall, great Case! Pictures: Red Arrow points to where the filter is located between the front and fans. Have to remove HDD Cage as well as Fan Assembly to access Filter, so it was relocated to the outside of the case (Also pictured). Also showing HDD / SSD Clearance.

This is a great case. Well built and room for everything you need. Even the low profile 4060 I have fit perfectly. My only gripe is 2 of the screws to take the hard drive cage out are hard to get unless you have a long Philips.

It was nicely laided out. The case was easy to work with.

Easy to install in rack, smooth fit, great value, plenty of room for good cooling. Sturdy case & functional

Very usable in short racks and sturdy. If this will be used in a location where people are working, then the included 8 cm fans should be replaced with quieter, PWM fans that plug directly into the motherboard. Cramped space can be expected with any 2U case, but note that: 1) Only the top slot of each 3.5 drive case is usable with micro-ATX motherboards. 2) A hard drive in the left-most 3.5 drive case will barely clear stock CPU fans on micro-ATX motherboards and will require right-angle SATA data and power cables. A large CPU cooler would not be possible with a micro-ATX motherboard. 3) A SFX power supply and ATX adapter plate will be needed for most hot swap cages that can be used in the 2x5.25 drive bay. IMHO, SFX PSUs are essentially required for short rack cases.

It's a nice case. Well put together. Not bad for the cost. I would have preferred 6 cover screws instead of just 4. As other people have reviewed, the issue comes when installing the HDDs. I guess this depends on the layout of your motherboard. On mine the right side bracket can't be used at all because the drives will cover the main ATX power header and get in the way of the memory cards. Maybe a single SSD at the top position but no full size drives. To mount on the left I had to put the larger drive at the top. For mounting the smaller SSD, I had to drill new mounting holes to shift it to the left (and then cut the corner off the mounting plate. Everything was in the way of the USB(3) header. Any one who can't make modifications should stay away from this case.