The Cisco SFP-GE-L is a Small Form-Factor Pluggable (SFP) transceiver module manufactured by Cisco Systems. It is designed to provide Gigabit Ethernet connectivity over fiber optic cables. The "GE" in the model name stands for Gigabit Ethernet, while the "L" indicates that it is a long-reach module capable of transmitting data over longer distances compared to other SFP modules. The SFP-GE-L supports a maximum link length of up to 10 kilometers (6.2 miles) and operates on single-mode fiber optic cables. It is commonly used in Cisco networking equipment such as switches and routers to enable high-speed and long-distance network connections.