2 of 2 people found the following review helpful
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This review is from: TP-LINK TL-PoE150S PoE Injector Adapter with IEEE 802.3af Compliant (Personal Computers)
I bought two of these recently for stand-alone teleworkers to power their Mitel 5312 phones. They have both been entirely reliable for this purpose. Presumably one has to check the power requirements, and not allow the demand to exceed the rating of the device.