Cisco - QSFP+ transceiver module - 100GbE - 100GBase-CWDM4 Lite - LC single-mode - up to 2 km - 1271 nm / 1291 nm / 1311 nm / 1331 nm - for P/N: N9K-C93180LC-EX-B2, N9KC93180LCEXB2-WS, N9K-X9732C-EX-RF, NCS-5502-RF, NCS-5502-WS

Product Overview

AI-generated summary

This is one of those “do exactly what the spreadsheet says” optics from Cisco: a 100GbE QSFP+ module aimed at short/medium reach CWDM4, intended to work with specific Cisco part numbers/models. At ~£1,458 ex-VAT, it’s not cheap, but the upside is you’re paying for compatibility and predictable behaviour inside a Cisco-focused environment—especially if your network is already built around those particular chassis/transceivers. If you’ve got the relevant Cisco systems (and you know this matches them), it’s a sensible fix for a like-for-like replacement or a capacity expansion where you can’t risk wonky optics or support headaches.

Who should buy it: network teams running the listed Cisco platforms who need a reliable, supported CWDM4 100G link and are comfortable that they’re buying the right form of optics for that specific hardware. Who should *not*: anyone hoping to “buy one module and try it everywhere” (these things are picky), or buyers looking for maximum value where they don’t need Cisco-branded compatibility. For your money, you should only pick this if you’ve confirmed the exact compatibility in advance; otherwise, you’ll risk spending close to this again on the “right” module after the first one refuses to play nicely.