NETGEAR ProSAFE GS750E Gigabit 48-Port Port Configuration: Features 48 ports of 1000BASE-T (Gigabit) and two SFP slots for fiber optic connections. Silent Design: Despite being a 48-port model, it adopts a fanless design, ensuring completely silent operation. Installation: Supports both 19-inch rack mounting and desktop installation. High Durability: Operates in temperatures up to 50°C, making it suitable for installation in locations prone to heat buildup, such as small IT cabinets.