The rack that I received is not even close to the one being advertised. My rack is adjustable from 21"-29", not 25"-37" as advertised. The only way to make this rack anywhere near 37" would be to double up the sliding brackets so that there are 2 outer pieces and 1 inner piece between them, but there aren't enough of the brackets supplied to do that even on the 4 corners.
The 4th image on this listing is not even the same product as the other images, and none of the qualities in that image are present in the product that I received. The hardware for putting the rack together is black in the images, but what I received only has silver bolts (excluding the actual M6 nuts and bolts for fitting items to the rack, which are black). In the image, there are heavy duty bolts that attach the base to the main rack posts, but my item has no heavier bolts. In addition, there are no printed markings indicating the number of each rack unit; there are only small, black notches that are difficult to see anyway.
The overall quality and manufacturing tolerances are extremely low. The holes are drilled about 1-2mm too large for the bolts, so it is very difficult to get the rack to actually be square.
All in all, while the price may be tempting, you are much better off paying more for a higher quality product.
It's a basic open rack. It came with the cage nuts which was a very pleasant surprise. If you are looking for a basic computer rack, this is the one for you!!!
Racks came well packaged and undamaged.
Unit assembled very easy with minimal directions. Would like to have had position stickers included for easier component instalation but other than that one negative I give these racks a 5 star rating and would recommend them.