SFP10G-SR - SFP+ transceiver module for 10 Gigabit Ethernet over multimode fiber Maximum speed over the shortest distance: With the ZyXEL SFP10G-SR you get a powerful SFP+ transceiver module specially designed for 10 Gigabit Ethernet connections over multimode fiber. It is perfect for high-speed data transmission in data centers, enterprise networks or backbone infrastructures.