Except for 10GE optical ports on the CE-L48XS-FG card, 10GE optical ports on CloudEngine series switches support GE optical modules and GE copper modules. When SFP optical module is inserted into the SFP port of Gigabit switch with fiber optic patch cable or copper cable, it can realize different distance transmission. It was first defined by the IEEE 802. 10G optical modules are optical transmission devices used to transmit 10Gbps data rates and are commonly used in high-speed data centers and enterprise network environments. They use specific. SFP+ cages (10G) are backwards compatible with SFP modules (1G), but that is only if the switch software supports 1G links and not all of them do. A high-speed optical port supports low-speed SFP, eSFP, and SPF+ modules.