Switch, Ethernet, EX3400 48 Port 10/100/1000BASE-T, 4x 1/10GbE SFP/SFP+, 2x 40GbE QSFP+, 2x EX3400-FAN-AFO, Front to Back Airflow, 150W Supply, 35DBA Acoustic Noise, w/ Two AC PSU JPSU-150-AC-AFO, 17.4in W x 1.72in H x 13.8in D