The Cisco SFP-10G-ER-S is a 10GBASE-ER SFP+ transceiver module designed for high-speed 10 Gigabit Ethernet connections over single-mode fiber (SMF). It operates at a wavelength of 1550 nm and supports link lengths up to 40 kilometers on standard SMF (G.652). The module features a dual LC/PC connector and is hot-swappable, allowing for easy installation without network disruption. It’s compatible with a range of Cisco switches and routers, offering flexibility for various networking environments. citeturn0search0
