Ubiquiti U-POE-af PoE Adapters 9U and this box is matched

and this box is matched specifically to the E21 for an accurate fit

When should this bracket be installed

Equipped with dual SATA hard drive bays supporting up to 32TB of total storage capacity and ANR (Automatic Network Replenishment) technology

making good

A cost-effective alternative to a networked access system for one door

Ubiquiti U-POE-af PoE Adapters 9U and this box is matchedAn adapter that can power UniFi PoE devices with wireless mesh applications, or offload PoE switch power dependencies. Features: Delivers up to 15W of PoE Compatible with the U6 Mesh, Camera G4 Pro, and other PoE devices Surge, peak pulse, and overcurrent protection AC cable with earth ground LED indicator for status monitoring