Ubiquiti Dream Machine Special Edition (UDM-SE): ports, drive bay and setup guide
The UDM-SE is a 1U UniFi gateway with an 8-port LAN switch, a 2.5G RJ45 WAN, a 10G SFP+ WAN, a 10G SFP+ LAN port and a front drive bay. Network ports are on the front and power is on the back. Click any port on the panels below to see what it does.
- 1U rack mount
- 8 x RJ45 LAN
- 2.5G RJ45 WAN
- 10G SFP+ WAN
- 10G SFP+ LAN
- 3.5 / 2.5 in. drive bay
UDM-SE specifications
| Model | UDM-SE |
| Form factor | 1U rackmount, network ports on the front |
| LAN ports | 8 x RJ45 |
| WAN ports | 1 x 2.5G RJ45, 1 x 10G SFP+ |
| SFP+ LAN | 1 x 10G SFP+ |
| Storage | 1 drive bay, 3.5 in. or 2.5 in. drive |
| Display | Front touchscreen |
| Front controls | Reset button |
| Power | AC inlet on the back with a cord lock, power cord included |
| Mounting | 19 in. rack brackets, cage nuts and 10#-32 screws included |
| Setup | UniFi Network app over Bluetooth |
Every port on the UDM-SE, explained
Click a card to light up those ports on the panels above.
8 LAN ports8 on the panel
Ports 1 to 8 are RJ45 LAN ports on the built-in switch, for access points, switches and wired devices.
2.5G RJ45 WAN1 on the panel
The single RJ45 port to the right of the LAN block is the 2.5G WAN, for a copper modem or ISP handoff.
10G SFP+ ports2 on the panel
The top SFP+ cage is the 10G WAN, for a fiber or 10G handoff. The bottom SFP+ cage is a 10G LAN port, usually the uplink to your core or aggregation switch.
Power inlet1 on the panel
The AC inlet is on the back. After you plug in the cord, slide the lock over it so it cannot be pulled out by accident.
Pick one WAN. The guide shows two ways to connect the internet: option A uses the 10G SFP+ WAN, option B uses the 2.5G RJ45 WAN.
What else is on the front
- Touchscreen display on the left end of the panel.
- Drive bay in the middle holds one 3.5 in. or 2.5 in. drive.
- Reset button is the small pinhole at the bottom right, below the SFP+ cages.
What's in the box
- UDM-SE
- 2 rack mount brackets
- 8 M4 screws for the brackets
- 4 cage nuts and 4 10#-32 rack screws
- 1 6#-32 screw (3.5 in. drive) and 4 M3 screws (2.5 in. drive)
- AC power cord
Rack mounting the UDM-SE
- Attach a bracket to each side with the M4 screws.
- Snap cage nuts into the rack posts.
- Set the UDM-SE in the rack and fasten the brackets with the 10#-32 screws.
Install a hard drive
- Press the drive bay door on the front to release it, then pull the tray out.
- For a 3.5 in. drive, drop it into the tray, slide it back to seat it and lock it in with the 6#-32 screw.
- For a 2.5 in. drive, fasten it to the tray from below with the 4 M3 screws.
- Slide the tray back into the bay until it seats, then close the door.
Power and first-time setup
- Plug the power cord into the back of the unit, slide the cord lock over it, then plug it into an outlet.
- Connect your internet to either the 10G SFP+ WAN or the 2.5G RJ45 WAN.
- Install the UniFi Network app on your phone.
- Open the app near the UDM-SE. It finds the unit over Bluetooth and walks you through setup.
Frequently asked questions
Which port is the WAN on the UDM-SE?+
There are two WAN ports on the front: the single RJ45 port is the 2.5G WAN, and the top SFP+ cage is the 10G WAN. Use the one that matches your internet handoff.
How many LAN ports does the UDM-SE have?+
Eight RJ45 LAN ports, plus one 10G SFP+ LAN port for a switch uplink.
What is the difference between the UDM-SE and the UDM-Pro WAN?+
The front layout is the same, but the RJ45 WAN on the UDM-SE runs at 2.5G instead of 1G.
Where does the power cord plug in?+
On the back of the unit. The inlet has a lock that slides over the plug to hold it in place.
Can I use a 2.5 in. drive in the UDM-SE?+
Yes. The tray takes a 3.5 in. drive or a 2.5 in. drive. A 2.5 in. drive mounts to the tray with the included M3 screws.
How do I set up a new UDM-SE?+
Connect the WAN, power it on, then open the UniFi Network app on your phone. The app finds the UDM-SE over Bluetooth and guides you through setup.
Plan this gateway in your rack
The UDM-SE is in the Ubiquiti library for DaMatrix, with every port mapped so you can drag it into a rack, patch it and print the documentation.
Related Ubiquiti devices
- U7-Pro-Max
- Ubiquiti Aggregation (USW-Aggregation)
- Ubiquiti Dream Machine Pro (UDM-Pro)
- Ubiquiti Dream Machine Pro Max (UDM-Pro-Max)
- Ubiquiti Enterprise Firewall (EFG)
- Ubiquiti Enterprise Firewall Core (EF-Core)
- Ubiquiti Pro Max 16 (USW-Pro-Max-16)
- Ubiquiti Pro Max 24 PoE (USW-Pro-Max-24-PoE)
- Ubiquiti Pro Max 48 PoE (USW-Pro-Max-48-PoE)
- Ubiquiti Pro XG 48 PoE (USW-Pro-XG-48-PoE)
- Ubiquiti Standard 16 PoE (USW-16-PoE)
- Ubiquiti Standard 24 PoE (USW-24-PoE)
- Ubiquiti Standard 48 (USW-48)
- Ubiquiti WAN Switch (USW-WAN)
Summarized from the Ubiquiti UniFi Dream Machine Special Edition Quick Start Guide. This page is a quick reference; check the full manual for safety warnings and model-specific limits.