If you are a previous server/network guy then you will probably just want the best of the best as anything else would just waste your time and be a pain to use.<p>I recommend the following if you need quiet
<a href="https://www.apc.com/shop/us/en/categories/racks-and-accessories/racks-and-enclosures/netshelter-cx/N-1ks6cn2" rel="nofollow">https://www.apc.com/shop/us/en/categories/racks-and-accessor...</a><p>If you have the space and height, might as well just put in a full rack that is also deep so you can put anything in it.
<a href="https://www.apc.com/shop/us/en/categories/racks-and-accessories/racks-and-enclosures/netshelter-sx/N-2mkplc" rel="nofollow">https://www.apc.com/shop/us/en/categories/racks-and-accessor...</a><p>This way you are not bending over to reach things that would be much easier to reach while standing and it looks very professional, and will align with what is used in the data centers. Security wise, it locks at the front and back, if you need to you can pop the sides off the rack and put them back with little to no effort. Best of all there is room to put a full PDU or PDUs. There are also variants that you can easily move so you only have to unplug the power and fiber uplink(s).<p>As the smaller 19 inch racks are normally not tall/deep enough to do an advanced home setup (e.g. UPS (2U) at the bottom, routers (2U each for the good ones), KVM (1U), KVM Switch (1U to 2U), switches (1U each) at the top, storage server (2U to 4U), couple of virtualization servers (1U to 4U), firewall (1U to 2U), backup server (2U to 4U)).<p>My 19 inch rack did not last very long and I decided to chuck it and upgrade to a full rack and never looked back. Small investment for the connivence and flexibility to use a more realistic setup, especially if you are a professional engineer.<p>If you are not able to get it through regular house doors you can get a split colo rack or rack that is split in two so you can move each piece in and do not have to have it at it's full height until it needs to be finally positioned.