The right rack or cabinet needs to fit according to the dimensions of your equipment accurately. Keep in mind that although width and depth are usually measured in standard units, it’s not uncommon for the height to be calculated in “rack units” (U), defined as 1.75in.
Ultimately, you need to be able to use your server racks and cabinets easily. There should be some useable space left after everything is in so you can access the components you need, and some racks and cabinets even come with wheels if mobility is important for you.
Your server rack or cabinet needs to be able to support all of the devices and components within it including cables, switches, and mounts.
With cooling costs on the rise, it’s important to look for racks and cabinets that help mitigate those expenses and contribute to cooling with features like airflow management.
If this is a concern for you, you will likely need to choose enclosed cabinets that feature side panels and doors.