What about power consumption?
According to the data sheet, the maximum consumption should be 100 W.
I think that is at maximum configuration with 10 gbps SFP+ and QSFP modules.
But what about partial configuration?
I would initially equip 8 Gigabit SFPs and connect 6 10G DAC cables.
I would hope that the switch would manage with 30-40 W in such a constellation.
Who has experience?
Note in advance: the Pro Aggregation does not have QSFP ports but SFP28)
Otherwise, the assessment is pretty accurate.
According to the data sheet, the maximum power consumption of the UniFi USW Pro Aggregation is 100 W. This value refers to a full configuration with active SFP+ (10 Gbps) and SFP28 (25 Gbps) transceivers, i.e. in the "worst case" at full load.
In practice, things usually look different:
Without modules, consumption is significantly lower, often less than 30-40 W. With a few SFP+ modules (e.g. 2-4 ports occupied), the real consumption often stabilises in the 40-60 W range.
SFP+ (10 Gbps) MM (SR) up to 300 m (OM3) ~0.6-1 W SM (LR) up to 10 km ~1-1.5 W SM (ER/ZR) 40-80 km+ ~2-3 W or more
SFP28 modules (25 Gbps) MM (SR) up to 70 m (OM3) / 100 m (OM4) ~1.0-1.5 W SM (LR) up to 10 km ~1.5-2.5 W SM (ER/ZR) >10 km 2.5-3.5+ W
So if you don't equip all ports with power-hungry modules at the same time, the consumption remains well below 100 W.
Live measurements:
My values for the UF-MM-10G modules from Ubiquiti are roughly always around ~3.3V with ~10mA which results in ~0.3W per MM module. (Load-dependent fluctuations, of course)
Yes, it consumes electricity. If my lifetime wasn't limited, I would of course measure exactly how much it needs, but if you don't buy a switch, you can definitely save electricity. Greetings to Germany