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