Featuring models offering either 24 or 48 10/100/1000BASE-T ports, the Juniper EX3400 switches also support IEEE 802.3af Power over Ethernet (PoE) or 802.3at PoE+ for powering networked telephones, video cameras, wireless LAN access points, and other IP devices. Four front-panel dual-mode (GbE/10GbE) small form-factor pluggable transceiver (SFP/SFP+) uplink ports and two 40GbE quad SFP+ (QSFP+) ports are also available for connecting the switches to upstream devices.