Silverstone SST-RM23-502 Mini 2U Case Supports mATX /ITX MBD - 4x PCI Slot Low Profile -2x 3.5" Internal - 1x 2.5" Internal - 2x 5.25 Expansion Bay - CPU Cooler Support Upto 65mm - Front I/O: 2x USB - ATX (PS2) / 2U single / 2U Redundant PS

If you like a chassis that can be installed into a standard 19" rack then this is an option you may wish to consider. There are two models of RM23-502 chassis and this is the smaller one, which consequently has less internal drive bays and slots available. It fits a standard ATX power supply which draws air through the top lid, which means its air extraction fan isn't available to help cool the internals of the computer. There are two external 5.25" drive bays, and an internal cage holds up to two 3.5" drives and one 2.5". The chassis accommodates microATX boards and provides for low profile expansion slots at the rear. No cooling fans are...view more If you like a chassis that can be installed into a standard 19" rack then this is an option you may wish to consider. There are two models of RM23-502 chassis and this is the smaller one, which consequently has less internal drive bays and slots available. It fits a standard ATX power supply which draws air through the top lid, which means its air extraction fan isn't available to help cool the internals of the computer. There are two external 5.25" drive bays, and an internal cage holds up to two 3.5" drives and one 2.5". The chassis accommodates microATX boards and provides for low profile expansion slots at the rear. No cooling fans are supplied with this chassis.
The main issues I see with this chassis are the various limitations on cooling airflow. As noted the power supply fan doesn't draw air through the chassis like on most systems, so this has to be left to the optional 80 mm chassis fans, one of which is blocked by the internal drive cage. There is also an issue with a standard ATX power supply drawing its air through the top of the chassis, which means this chassis can't be closely stacked with other devices in a rack to avoid blocking airflow. This possibly might be obviated with one of the alternative power supply options available. Don't buy this chassis if you are looking to use anything other than a standard CPU or to overclock because the airflow issues mean overheating is a real risk.

Pretty basic but perfect for a comms cabinet with its length.
Installed two 80mm fans in the front and two hot swap drive daddy's.
Running 12400 with stock fan and no heat issues. Pretty basic but perfect for a comms cabinet with its length.
Installed two 80mm fans in the front and two hot swap drive daddy's.
Running 12400 with stock fan and no heat issues.