Juniper QFX-QSFP-40G-SR4 Switches Overview
Juniper QFX-QSFP-40G-SR4 Switches is a genuine modular capacity expansion product from Juniper, a specialist in high-performance routing and switching, trusted in service-provider and large-enterprise networks. Belonging to the Juniper family, the Juniper QFX-QSFP-40G-SR4 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 1 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 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: “QSFP+, 40GBASE-SR4 for Switching Platforms, MMF OM3 100 meters and OM4 150 meters, Standard Temperature (0 through 70 DEGREE C), MPO-12 connector”. 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 Juniper QFX-QSFP-40G-SR4. 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 Juniper QFX-QSFP-40G-SR4
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.
| QFX-QSFP-40G-SR4 Specification | |
| Model | QFX-QSFP-40G-SR4 |
| Form Factor | Plug-in module |
| Type | QSFP+ transceiver module |
| Cabling Type | Ethernet 40GBASE-SR4 |
Data Link Protocol | 40 Gigabit Ethernet |
| Data Transfer Rate | 40 GBps |
| Interfaces | 1 x Ethernet 40GBASE-SR4 |
| Compatible Slots | 1 x QSFP+ |
| Compatible With | Juniper Networks EX Series EX4550, EX4600, EX4650-48Y, EX9204, EX9208 ¦ Juniper Networks PTX Series PTX10001-36MR, PTX10008 ¦ Juniper Networks QFX Series QFX10002-60C, QFX10008, QFX10016, QFX3500 Switch, QFX3600 Switch, QFX5120-32C, QFX5120-48T, QFX5120-48Y, QFX5200-32C, QFX5200-48Y, QFX5210-64C, QFX5220-128C |
Juniper QFX-QSFP-40G-SR4 - Compatibility Notes
This Juniper QFX-QSFP-40G-SR4 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 Juniper QFX-QSFP-40G-SR4 unit is tested for correct operation and performance before dispatch, ensuring reliable link establishment on arrival.
