To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
My QNAP NAS sat on a shelf for a while because I didn't want to spend $90 for this rail kit, but when I found it at half price from Amazon Warehouse I snatched them up.
As others have stated the rails a really nice. The installation was quick and toolless except for the two screws that prevent the NAS from sliding out. The rails only take up 1U of space and require square holes. The rails appear to be made by King Slide.
I would have loved to have installed this product. It was solidly built and top quality. However, it is ONLY usable in full depth cabinets as it is a full 29" long. As I am using a switch depth cabinet, it was to long so I had to return the item. Would buy again if I ever get a full depth cabinet.