StarTech.com 4POSTRACK12U 12U Adjustable Depth Open Frame 4 Post Server Rack w/ Casters / Levelers and Cable Management Hooks

Pros: Good price, easy to assemble, comes with some extra screws, decent paint finish...

Cons: While not the best instructions, it is still pretty self-explanatory to figure out... Just make sure that you put the long flat piece at the bottom where everything screws together. The picture that they show in the instructions shows no bottom piece and you'll want to have that to add rigidity and more structure. Other then that, nice little rack!

Overall Review: The price is good, would be really nice if they would also include a small 1U shelf with it, then you could store your small junk, like a cable (or DSL or whatevs) modem, small firewall / wifi router and maybe a cheapo UPS.... Construction is pretty decent and I think this will hold up as long as it doesn't get loaded up with a crazy amount of hardware, i.e., old Pentium Pro 200MHz Duke Nukem 3D development boxes....

Pros: - Flexible design
- Sturdy and well-made
- Beautifully packaged and padded

Cons: - Assembly instructions are not great
- One of the hardware bags was two washers short
- The manual has a couple of CAD errors that could result in incorrect assembly
- Casters use non-locking nuts that require a second wrench to tighten
- One caster was far from level and no extra washers are provided for adjustment
- Design flaws when assembled at the minimum 22" depth (see below)
- No torque values provided

Overall Review: When assembled at the minimum depth of 22 inches, this rack has a couple of problems:

- You only get to use two (rather than four) bolts to secure each piece of the extensible rails.

- One of each caster's four bolts clashes with the nuts on the inside of the extensible rails. Inserting the bolt is already very difficult, and tightening it is worse: since the casters' nuts are not locking, the head of the bolt must be held still with one wrench while tightening the nut with another, and it's nearly impossible to maneuver a wrench between the nuts on the inside of the rail to hold the caster bolt. When you do get it right, it's extremely precarious and at an awkward angle that's begging for the bolt to slip.

OCD tip: Using a torque wrench, tighten the M8 bolts holding the rack together to 147 in-lb.