PoE+ to USB-C splitter
PoE+ to USB-C splitter for UniFi Cloud Gateway Ultra
Intro
I have a UniFi Cloud Gateway Ultra
that supports speed 10/100/1000
with the following 🔌 Power Specifications:
Power Method | Max. Power Consumption | Supported Voltage Range |
---|---|---|
USB type C (5V DC/3A) | 6.2W | 100-240V AC |
It comes with a 🔌 Power Supply:
- USB type C (5V DC/3A) (Adapter included)
So currently the setup looks like this:

I want to avoid using 2 cables:
- 1 cable for power
- 1 cable for data transfer.
Instead I want to power this over PoE+
from my UniFi Lite 8 PoE
device with one cable.

This means I need a PoE+ to USB-C splitter
that:
- Voltage (V): Must be exactly 5V - this is non-negotiable.
- Current (A): Should be 3A or higher.
- Uses USB-C as the output port
- Is 802.3at (PoE+) compliant (to provide sufficient power)
Investigation
But all of the above is not really necessary because the Max. Power Consumption
of the UniFi Cloud Gateway Ultra
is only 6.2W
there is no need for 5V 3A
that is 15W
:
Power (W) = Voltage (V) × Current (A)
= 5V × 3A
= 15W
5V 2.4
supports 12W
which is more than enough for the Max. Power Consumption: 6.2W
of the UniFi Cloud Gateway Ultra
.
Power (W) = Voltage (V) × Current (A)
= 5V × 2.4A
= 12W
If we look at the table below we also dont need 802.3at - PoE+ (Type 2)
.
802.3af - PoE (Type 1)
is more than the Max. Power Consumption: 6.2W
of the UniFi Cloud Gateway Ultra
.
Standard | Max Power from PSE | Max Power at PD | Voltage Range | Common Name |
---|---|---|---|---|
802.3af | 15.4 W | 12.95 W | 44-57 V | PoE (Type 1) |
802.3at | 30.0 W | 25.5 W | 50-57 V | PoE+ (Type 2) |
So in the end I went for a budget PoE+ to USB-C splitter
:


But if you want to be on the safe side it is better to go with 5V 3A
version that supports 802.3at (PoE+ (Type 2))
and speed of 10/100/1000
or higher.