Use Case: Long-distance connections in data centers or enterprise networks.
10GBase-SR:
Speed: 10 Gbps
Medium: Multi-mode fiber (MMF)
Max Distance: Typically up to 300 meters (984 feet) with OM3 fiber
Use Case: Short-range, high-speed connections within data centers or between equipment racks.
100Base-FX:
Speed: 100 Mbps
Medium: Fiber optic (usually multimode fiber)
Max Distance: 2 km (using multimode fiber)
Use Case: Used for Fast Ethernet over fiber in enterprise LANs or between network switches where EMI is a concern or longer distances are needed than copper allows.