but I don't know if they sell one with 4 ports.
You can get up to 6 keystone jacks in a 1-gang box
I thought that I would buy a new rack-mountable switch and patch panel. This is what I've been considering:
Like /u/toaster_knight said, get a vertical or deeper one. I would strongly recommend an actual enclosure with a locking door for an office environment.
I also see no reason to put anything smaller than a 24-port in a rack. It's just a waste of space and money.
I would also recommend at least a SMB-level switch. Yes, they are more expensive, but their uptime and management capabilities are worth it IMO. The Ubiquiti 24-port switch is under $200 IIRC.
I'm assuming that I can rest the router on top of the switch.
That will probably be fine, but you can get rackmount shelves and drawers as well. The shelf is nice because you can remove the switch without messing about with the router.
I'd also like to buy some type of cable organizers for inside the ceiling. I normally use those small cable clips, but they seem to be intended for one cable. I've seen velcro used, but I'm not sure how to actually secure the cables.
You can get joist hangers, but inside a ceiling, the cables are usually just bundled and left loose or in a tray. If you have a drop ceiling, there are a wide variety of products designed for your support system.
I would also recommend a UPS and a power distribution panel. UPS for obvious reasons and the power panel will let you easily power cycle each component without having to dig into the back--something that gets much harder after rack-mounting.
I'm only on 60/60 since I'm not the account holder, but my setup is more than capable of handling gigabit. It's way more than you'd need for a basic UniFi setup. All you need for a basic setup is either a UDM (which is an all-in-one device) or a USG, switch (doesn't need PoE, AP includes an injector), AP, and controller (which can be installed on any PC, it doesn't need a standalone device).
This is my network rack. The equipment is, from top to bottom:
Keystone patch panel
US-24
Shelf with Raspberry Pi 3B+ (for Pi-hole), US-8-150W, USG
Cloud Key Gen2+ in its rackmount adapter
Rackmount surge protector
Oh, and this is the rack itself.
The ONT is off to the left and connects to port 1 of the patch panel and port 1 of the main switch. Ports 1 and 24 of the switch are in a separate "WAN Passthrough" VLAN which isolates them from LAN traffic. This wasn't necessary, it just makes the wiring neater. Port 24 on the switch connects to the USG's WAN2/LAN2 (configured as WAN since WAN1 died), and LAN1 connects to the LAN via port 22 on the switch. Port 2 on both the patch panel and main switch goes to the 2nd floor, I was only able to run a single Ethernet cable between floors, so this goes to another PoE switch that powers the 2nd floor AP. The rest of the lines on the main switch go to Ethernet jacks in various rooms. Ports 3 and 4 on the patch panel are connected to the PoE switch, and power the basement and first floor APs. The PoE switch also powers the Raspberry Pi and Cloud Key. Its four remaining ports will be for security cameras. The Cloud Key Gen2+ serves as a NVR for UniFi Protect (in addition to running the UniFi Controller), so everything's all ready for them.
The two switches are connected by their SFP ports in order to not take up any of the normal ports for this purpose. I used two pairs of these transceivers and two of these cables, which actually was cheaper than using RJ45 SFP modules. The SFP ports are set up as a link aggregation group on both switches, so they essentially become a single 2 gigabit link, avoiding any bottlenecks.
The basement AP is a Lite and the 1st and 2nd floor APs are Pros. The Pro has since been supplanted by the NanoHD, which is my main recommendation for heavy-use areas. The Lite is still perfect for light-use areas.
