Cisco FirePower 4100 Series Network Module FPR4K-NM-4X40G Overview
Cisco FirePower 4100 Series Network Module FPR4K-NM-4X40G is a genuine modular capacity expansion product from Cisco, a global name in networking whose platforms are used by enterprises, service providers and data-center operators alike. Belonging to the Cisco FirePower 4100 Series family, the FPR4K-NM-4X40G 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 deployed as a standalone unit or as part of a larger managed network, following the standard operating procedures of the platform.
From a specification standpoint, it offers 40 ports for client, server or uplink connectivity. These are the original factory figures for this model, giving administrators a clear picture of what the unit can deliver before it enters service. Standard mounting, cabling and management practices apply, so deployment follows the same procedures as other Cisco hardware already running in the environment.
Typical deployments include adding ports and performance to existing chassis systems, modernizing legacy platforms with compatible line cards, and mixing copper, fiber and high-speed uplinks in one chassis. 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: “Cisco FirePOWER - network adapter - 40 Gigabit QSFP+ x 4”. 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 FPR4K-NM-4X40G. We respond quickly with stock status and a firm quote, so you can plan the refresh or expansion with confidence.
Key Specifications
Applications
Perimeter Security
Stateful inspection and threat prevention at the edge.
Branch Protection
Secure branch offices with VPN and UTM.
Data Center
High-throughput filtering for north-south traffic.
Buying a Pre-Owned FPR4K-NM-4X40G
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.
| FPR4K-NM-4X40G | |
| Product list | |
| Product code | FPR4K-NM-4X40G |
| Product Type | Network adapter |
| Product parameters | |
| Ports | 40 Gigabit QSFP+ x 4 |
| Data Link Protocol | 40 Gigabit LAN |
| Data Transfer Rate | 40 Gbps |
| Connectivity Technology | Wired |
| Interfaces | 4 x 40Gb Ethernet - QSFP+ |
| Environmental Parameters | |
| Min Operating Temperature | 32 °F |
| Max Operating Temperature | 104 °F |
| Humidity Range Operating | 10 - 85%(non-condensing) |
FPR4K-NM-4X40G - Power Notes
This FPR4K-NM-4X40G power supply/fan variant is specified for the wattage and redundancy configuration indicated in the specifications above. Confirm the input voltage, connector type, and compatibility with your chassis before ordering.
For redundancy planning, verify that the PSU variant matches the power budget of your chassis population. Our team can confirm compatibility and availability before dispatch.
Each FPR4K-NM-4X40G unit is tested for correct output and operation before dispatch, ensuring reliable power delivery on arrival.
FPR4K-NM-4X40G - Cisco Series Notes
This listing is part of the Cisco enterprise networking product family, sourced and tested by LinkNewNet for enterprise deployment. Cisco module/line card expands the capability of a chassis platform, adding interface density, forwarding capacity, or service features. It is installed in a matching chassis slot and managed as part of the parent platform.
Deployment guidance: When planning this FPR4K-NM-4X40G 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: AIR-LAP1142N-E-K9, A9K-750W-AC, ASR1000-ESP40, A9K-2X100GE-TR, ASR1000-6TGE. Compare specifications to confirm the right port density, feature set and uplink options for your deployment.
Model code: G = Gigabit Ethernet interface - this suffix indicates the feature set, power, or regulatory variant of the FPR4K-NM-4X40G, which affects software licensing and regional compliance.
