EX4300 24T Juniper EX4300 Series Ethernet Switches 24 Port 10 100 1000BaseT SKU EX4300-24T Backplane speed 320 Gbps (Virtual Chassis) Data rate 448 Gbps Throughput 333 Mpps (wire speed) 40GBASE quad small form-factor pluggable plus transceiver (QSFP+) port densities 4 per switch Up to 20 in Virtual Chassis configuration (assuming 2 ports per switch are used for forming Virtual Chassis) Dimensions (W x H x D) 17.4 x 1.7 x 16.4 in (44.2 x 4.3 x 41.7 cm) 1 rack unit