This is a NETGEAR ProSAFE 48-Port Gigabit Smart Switch (GS748T v5) Ethernet Switch

Name - GS748Tv5

Form-Factor- Rack mount

 10/100/1000Base-T RJ45 ports  x  48

100/1000X Fiber SFP ports x  2 (Dedicated) + 2 (Combo)

 Power Supply Internal

 Fans x 1