PoE Injectors › Forums › WiFi Access Points › Unifi- a or b? Tagged: WiFi This topic contains 1 reply, has 2 voices, and was last updated by Stephen 1 year, 7 months ago. Log In Register Lost Password Viewing 2 posts - 1 through 2 (of 2 total) Author Posts December 4, 2015 at 6:40 am #9721 KarlyMember Not sure which one to get for Ubiquiti – apparently with this form the 24 volt and one that can do the A or B – do you happen to know if Unifi is A or B? February 18, 2016 at 5:06 pm #9892 StephenKeymaster Hello – It depends on the Unifi model. If the model uses 24v PoE, then you need mode B. For other Unifi models, mode A or B will work. Almost all of our injectors support mode B. The only exception is the Gigabit 4 port injector. It’s mode A only. Thanks! Author Posts Log In Register Lost Password Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic.