LevelOne POI-4000. Cabling technology: 10/100Base-T, Power over Ethernet (PoE): 56 V. Dimensions (WxDxH): 90 x 120 x 28 mm. Certification: FCC Rules Part 15 Class A CE. Operating temperature range (T-T): 0 - 50 °C, Operating relative humidity range: 5 - 90 %