DWDM-XFP-31.90 — Cisco SFP

The DWDM-XFP-31.90 is a Cisco optical module in XFP (10 Gigabit Small Form-factor Pluggable) format, intended for DWDM deployments over single-mode fiber at extended reach. It operates on a dedicated channel of the DWDM grid; no wavelength is explicitly stated in the available datasheet. The XFP form factor, older than the SFP+, ensures compatibility with previous-generation Cisco routers and switches.

This module targets network teams maintaining mixed infrastructures and seeking to extend the lifespan of their equipment without replacement. It represents a cost-effective solution for sustaining 10G DWDM links on existing XFP chassis. Genuine Cisco hardware, manufacturer warranty.