4.3" 480 x 272-pixel TFT LCD (Main display screen) and a BLF LCD, Dual Ethernet Port, PoE, WiFi, Up to 6 SIP accounts,3-way conference, Connected with up to 2x TFT LCD expansion modules (RET/AET) (Power adapter included, 5V 2A)

3.2" 462 x 278-pixel TFT LCD, Dual Gigabit Ethernet Port, PoE, WiFi, Up to 4 SIP accounts,3-way conference, Connected with up to 2x TFT LCD expansion modules (RET/AET) (Power adapter included, 5V 2A)

132 x 58 monochrome LCD with backlit Dual Ethernet Port, NON-PoE, WiFi Single SIP account,3-way conference, Wall-mount bracket design (Power adapter included,5V 1A)