DWDM-XENPAK3977-WS — Cisco SFP

The DWDM-XENPAK3977-WS is a Cisco transceiver in SFP form factor, WS variant, operating on a dedicated channel of the DWDM grid. The available specifications do not include a precise wavelength value in nm. The SFP form factor ensures compatibility with Cisco equipment fitted with standard SFP ports.

Its typical use case falls within long-haul DWDM architectures deployed by telecom carriers or large enterprises, where dozens of channels coexist on a single single-mode fiber. This module makes it straightforward to extend or replace equipment within an existing Cisco fleet. Genuine Cisco hardware, manufacturer warranty.