Polycom CX3000 IP Conference Phone Type: Wired VoIP Ports: Single Ethernet 10/100 Base-T with RJ45 connector port IEEE 802.3af class single PoE Ethernet 10/100 Base-T USB Device port, Type B female 2 extension Mic ports Display: Display, 3.5�, QVGA TFT 24-bit color graphical display, 320 x 240 pixels, with Unicode character capability LED backlight with adjustable brightness LEDs: Ringing/In Call/Mute/Hold indicator (x 3) Presence Indicator Power: Built-in, auto-sensing IEEE 802.3af-2003 Power over Ethernet Class 3 Optional AC power kit Dimensions: 14.37 x 12.76 x 2.64 in Weight: Console: 1.6 lb Temperature: 0 to +40 degrees C (+32 to 104 degrees F)