Pros: small quiet inexpensive efficient

Cons: incomplete and incorrect documentation fixed IO shield insufficient HDD mounts 20-pin ATX connector, not mentioned in the manual no manual included only 1 SATA + 1 molex power connector

Overall Review: This is one of the few rackmount chassis that will fit in a short-depth (<12") rack. I'm pleased with the overall quality, but a few things need pointing out. 1. With a mini-itx board you could fit 6-10 2.5" drives in here, but it lacks the mounting holes. Missed opportunity for a tiny 1U NAS, unless you're a modder. 2. SM mentions that you need an optional drive cage to mount a pair 2.5" hdd, but they don't mention that you need the same cage even to mount a single 2.5" hdd. You could get away with a 3.5" to 2.5" adapter if its mounting holes are on the bottom, not the sides. 3. SM says you can fit only 1 2.5" hdd when using a full-height pci/e card, but if you're using their dual-drive bay adapter you'll only be able to fit a half-height card, regardless of whether you have 1 or 2 drives in the bay. This will work well for a firewall. Too bad SM didn't throw in some extra mounting holes to accommodate more dual-drive bays and a fan or two, or this would be a perfect NA