CPAK-100G-CWDM4= - Cisco QSFP28 Module Overview
CPAK-100G-CWDM4= - Cisco QSFP28 Module is a genuine modular capacity expansion product from Cisco, a leading enterprise networking vendor whose Catalyst, Nexus and ISR families power campus, data-center and branch networks worldwide. Belonging to the Cisco family, the CPAK-100G-CWDM4= unit is built to the original factory specification, so it integrates with existing Cisco deployments predictably and behaves exactly as the platform documentation describes. In the network, it is installed into a compatible chassis slot, where it works alongside the supervisor and line cards to extend the platform’s capabilities.
This unit follows the original factory specification for the Cisco family, covering its intended role without compatibility surprises. Standard mounting, cabling and management practices apply, and it interoperates with surrounding hardware using the same procedures as other Cisco equipment already deployed in the network.
Typical deployments include short-reach data-center interconnects, campus backbone fiber links, and carrier access and metro networks. Organizations commonly source it for refresh programs, capacity expansion and spares management, keeping a tested unit on hand so outages stay short and replacements are predictable. The factory detail for this unit reads: “CPAK optical transceiver module,100G, CWDM4, 2km SMF”. This makes it a practical choice when original-spec hardware is required at a predictable cost.
Every unit at LinkNewNet is inspected and tested before dispatch, and stock is graded, cleaned and verified for correct operation, including port status, console access and firmware state. Our warranty coverage and responsive technical support protect the purchase after it arrives, and our team can confirm revision levels and software compatibility before you order. For volume requirements we also offer configuration checks and staged delivery options.
Contact our sales team for current availability, lead time and shipping options for the CPAK-100G-CWDM4=. We respond quickly with stock status and a firm quote, so you can plan the refresh or expansion with confidence.
Key Specifications
Applications
Capacity Expansion
Add ports and performance to existing chassis.
Upgrade Path
Modernize aging platforms with compatible modules.
Flexible I/O
Mix copper, fiber and high-speed uplinks.
Buying a Pre-Owned CPAK-100G-CWDM4=
Verify the unit is tested, firmware confirmed, and condition documented. Every unit is fully tested and warranty covered. Contact our team for current stock and availability.
CPAK-100G-CWDM4= Specification | |
Description | 100GBASE-CWDM4 Cisco CPAK Module for SMF |
Dimensions | 11.6 x 34.8 x 101.2 mm (0.46 x 1.37 x 3.98 in) |
Cisco CPAK port cabling specifications | |
Wavelength (nm) | 1271, 1291, 1311, 1331 |
Cable Type | SMF Duplex |
Core Size (Microns) | 9-micron core SMF per G.652 |
Cable Distance | 2 km |
Optical transmit and receive specifications | |
Type | 100GBASE CWDM4 SMF |
Transmit Power | Max:+2.5 per lane Min:-6.5 per lane |
Receive Power (dBm) | Max:+2.5 per lane Min:-10 per lane |
Transmit and Receive Center Wavelength Range (nm) | 100GBASE CWDM4 SMF |
Supported Mode | 1x100G |
Supported Protocol | IEEE 802.3ba |
Environmental conditions and power requirements | |
Storage temperature | -40 to 85° C (-40 to 185° F) |
Operating temperature | 0 to 70° C (32 to 158° F) |
Power consumption | At 70° C: <9.0 W maximum |
CPAK-100G-CWDM4= - Compatibility Notes
This CPAK-100G-CWDM4= transceiver/module variant is specified for the reach, wavelength, and form factor indicated in the specifications above. Confirm compatibility with your switch or router platform, including the required coding (Cisco, Juniper, Huawei, H3C) and supported data rate, before ordering.
When building out or refreshing links, match the transceiver variant to the optics budget and distance of each run. Our team can confirm compatibility with specific platforms and provide bulk pricing.
Each CPAK-100G-CWDM4= unit is tested for correct operation and performance before dispatch, ensuring reliable link establishment on arrival.
CPAK-100G-CWDM4= - Cisco Series Notes
This listing is part of the Cisco enterprise networking product family, sourced and tested by LinkNewNet for enterprise deployment. Cisco transceiver/optic module provides physical-layer connectivity for switches and routers, converting electrical to optical signals over fiber or copper media.
Deployment guidance: When planning this CPAK-100G-CWDM4= unit into a network, confirm the software image (IOS/IOS-XE/NX-OS) required, the power and cooling profile, and the upstream/downstream interface types that match your existing infrastructure. For a like-for-like refresh, match the feature set of the units already in service so management and automation behave consistently.
Our Cisco reconditioning process: Every pre-owned Cisco unit at LinkNewNet passes a documented reconditioning flow before dispatch - visual inspection, internal cleaning, firmware verification, port-by-port testing, and configuration reset to factory defaults. This ensures the unit you receive operates reliably and integrates cleanly with your existing Cisco management tools.
Related models in this family: QSFP-100G-LR4-S=, CXP-100G-SR10=, QSFP-100G-SR4-S=, QSFP-100G-AOC30M, QSFP-100G-CU1M. Compare specifications to confirm the right port density, feature set and uplink options for your deployment.
