The Cisco QSFP-40G-LR4-S is a 40GBASE-LR4 QSFP+ optical transceiver using 4-lane WDM (wavelength division multiplexing) at 1310 nm over single-mode fiber. It enables 40 Gigabit Ethernet links up to 10 km on OS1/OS2 SMF with an LC duplex connector.
- Standard: 40GBASE-LR4 (IEEE 802.3ba)
- Wavelength: 1310 nm (4-lane CWDM: 1295/1300/1305/1310 nm)
- Fiber type: Single-mode OS1/OS2
- Max reach: 10 km
- Connector: LC duplex
- Data rate: 40 Gbps (4 x 10 Gbps lanes)
- DOM support: Yes
Used for 40G campus backbone, data-centre ToR-to-aggregation links, and carrier metro uplinks where SMF long-reach 40G connectivity is required.
Networkser supplies the QSFP-40G-LR4-S as a genuine Cisco unit in tested condition with standard warranty.