QFX3100-NM-4GE - Juniper Switch Modules & Cards Overview
QFX3100-NM-4GE - Juniper Switch Modules & Cards is a genuine modular capacity expansion product from Juniper, a vendor known for scalable, high-performance networking platforms from the campus edge to the core. Belonging to the Juniper family, the QFX3100-NM-4GE unit is built to the original factory specification, so it integrates with existing Juniper 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.
From a specification standpoint, it offers 4 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 Juniper hardware already running in the environment.
Typical deployments include access-layer deployments for user, phone and AP connectivity, distribution and core aggregation in campus networks, and top-of-rack and end-of-row switching in data centers. 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: “Network Interface Card with 4x10/100/1000BASE-TX for QFX3100 (spare)”. 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 QFX3100-NM-4GE. 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 QFX3100-NM-4GE
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.
QFX3100-NM-4GE Specifications | |
| Product Name | QFX3100-NM-4GE |
| Brand | Juniper |
| Interface Type | Network Interface Card |
| Number of Ports | 4 |
| Port Type | 10/100/1000BASE-TX |
| Compatible Model | QFX3100 |
| Spare Part | Yes |
| Data Transfer Rate | Up to 1 Gbps per port |
| Port Status LED | Yes |
| Form Factor | Plug-in Module |
| Dimensions (L x W x H) | Varies, subject to product |
| Operating Temperature | 0°C to 45°C |
| Storage Temperature | -40°C to 70°C |
| Operating Humidity | 10% to 90% (non-condensing) |
| Storage Humidity | 5% to 95% (non-condensing) |
| Compliance | RoHS, FCC, CE |
| Power Consumption | Varies, subject to product |
| MTBF | High |
| Warranty | One year |
| Hot-Swappable | Yes |
| Inventory CH | Ready |
QFX3100-NM-4GE - Deployment Notes
This QFX3100-NM-4GE switch is suited to wiring-closet, distribution, or core roles depending on the port density and uplink options of the specific model. The port configuration is a key consideration when planning power budgets for attached devices such as IP phones and access points.
For a refresh or expansion, confirm the IOS/NX-OS software release supported by this specific SKU, the fan and power requirements, and the uplink modules that match your existing infrastructure. Our team can verify revision levels and software compatibility before you order.
Every unit at LinkNewNet is inspected and tested before dispatch, and this QFX3100-NM-4GE variant is graded, cleaned and verified for correct operation, including port status, console access and firmware state. Volume requirements can be staged with configuration checks.







