Connecting 4-pin DC Power to UniFi devices
Some UniFi devices feature 4-pin DC sockets as an optional power input, in addition to other power sources such as PoE, AC, or included 2-pin DC power adapters. Below are the specifications and pin-out for each device.
The same connector type is used for all products: Molex Micro-Fit 2x2 4 pin with 20-24 AWG pins and a pin pitch of 3.0mm.
UMR
Input voltage: 9V @ 1A
UMR-Ultra / UMR-Industrial / UDB-IoT
Input voltage: 9~30V
Max current:
| UMR-Ultra | 0.7A @ 9V |
| UMR-Industrial | 1.4A @ 9V |
| UDB-IoT | 0.3A @ 9V |
UCG-Industrial
Input voltage: 48V @ 5A