Most helpful critical review
1 of 1 people found the following review helpful
Beware of this device
on December 22, 2014
It will power a 48v device, so that is true. But the listing says it is 802.3at - this is not true. 802.3at specs 56 volts power on all 4 pairs, and specs an auto-negotiation before applying power (see wikipedia) - this device does not supply either 56 volts, 802.3at or 802.3af signalling - it provides 48 volts all the time. The device also has no FCC approvals - so it should not be sold in the USA, it has no UL approval, so beware - see outside photo. Inside, after a few minutes of operation, D1 burned up - so the LED failed - see inside photo. This is a design flaw.