PoE Transceiver Maximum Input Voltage 115/230V AC Maximum Output Voltage 56V DC Color Black Features 4 GB SFP Ports Automatic Switchover to Stand-By Battery When AC Fails Built-In Charger for Sealed Lead Acid or Gel Type Batteries Can Be Used for Standard Fiber Cable Applications As Well PoE Activity Led Indicators Includes Built-In Power Supplies Material Metal Plastic Overall Height 1 5/8 in Overall Width 19 1/8 in Standards CE UL Listed