SFP-10G-ER-S Cisco Compatible 10G SFP ER 40km SMF Transceiver

When a 10G link has to stretch to metro distance, the SFP-10G-ER-S covers it with ER optics rated to 40km over single-mode fiber. That extended reach and duplex LC termination suit aggregation and inter-office spans where 40km of SMF separates the endpoints. Coded for Cisco platforms, the SFP+ comes up as the recognized part, links with no configuration step, and reports live operating data over DDM.

• Form Factor: SFP
• Data Rate: 10G
• Protocol: ER
• Fiber Type: SMF
• Reach: 40km
• Connector: Duplex LC
• OEM Equivalent: SFP-10G-ER-S

Compatibility: Documented OEM compatibility (Cisco published compatibility documentation): this module is accepted in 10G SFP+ ports on the ASR 9000 Series, Catalyst 9300 Series, Catalyst 9400 Series, Catalyst 9500 Series, NCS 540 Series, NCS 5500 Series, Nexus 3000 Series, Nexus 9300 Series, Nexus 9500 Series, and Secure Firewall 3100 Series. This module follows Cisco's published compatibility matrix; for your exact line card or OS release, email 10.4@tenfouroptics.com and we'll confirm fit.

Tested & Proven: Every TenFour Optics part is coded, tested, and verified before shipment — see Tested & Proven.

It is verified against Cisco equipment and built to MSA specification, holding the 40km budget within the standard. Backed by the GreenLights4Life® Limited Lifetime Replacement Warranty. Stocked; ships same or next business day.