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QFX-QSFP-40G-ESR4-C
QSFP+ 40GBase-ESR4 40GB 850nm 300M Juniper Compatible
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Overview of QFX-QSFP-40G-ESR4-C: QFX-QSFP-40G-ESR4-C is a QSFP transceiver designed for 40G data transmission featuring a compact QSFP+ form factor. It supports high-speed Ethernet protocols with LC connectors and is optimized for short-range applications using multi-mode fiber, making it an ideal solution for data centers, enterprise networks, and telecom environments.
QFX-QSFP-40G-ESR4-C offers a reliable, high-performance solution with dimensions suited for high-density networking installations. Its efficient design minimizes power consumption while delivering excellent link performance, ensuring seamless integration into modern infrastructures where space and connectivity are at a premium.
QFX-QSFP-40G-ESR4-C price is is available on request. Get immediate quote.
Request bulk order quote for QFX-QSFP-40G-ESR4-C for additional pricing. Browse the full Juniper Compatible Qsfp+ series or explore all Orm products.
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| QFX-QSFP-40G-ESR4-C |  QSFPP-40GBASE-SR4-C |  QSFPP-40GBASE-LR4-C |  QSFPP-4X10GE-LR-C |  JNP-QSFP-40G-LX4-C | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | QSFP+ | QSFP | QSFP | QSFP | QSFP |
| Data Rate | 40G | 40G | 40G | 10G | 40G |
| Connector Type | LC | MPO | LC | LC | LC |
| Wavelength | 850nm | 850 nm | 1310nm | 1310nm | 1310 nm |
| Transmission Distance | Short-Range | Short-Range | Long-Range | Long-Range | Long-Range |
| Fiber Type | Multi-mode | Multi-mode | Single-mode | Single-mode | Single-mode |
| Max Distance | 100 meters | 100 meters | 10km | 10 km | 10 km |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Network Interface | Fiber | Fiber | Fiber | Ethernet | Fiber |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Juniper | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Juniper |
| Product Name | QFX-QSFP-40G-ESR4-C | QSFPP-40GBASE-SR4-C | QSFPP-40GBASE-LR4-C | QSFPP-4X10GE-LR-C | JNP-QSFP-40G-LX4-C |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Impressive 300m reach for extended short-range links. These ESR4 modules deliver rock-solid 40G performance and perfect compatibility with our Juniper QFX gear.
Reliable 40GBASE-ESR4 performance. Consistent signaling over our longer multimode fiber runs. Robust build quality and accurate diagnostic monitoring make these a top choice.
Professional grade ESR4 optics. Deployment was simple, and the signal integrity has been flawless. A dependable solution for extending 40G reach without single-mode fiber.
Steady and efficient. Reached 300m effortlessly with clear power margins. Significant ROI compared to branded alternatives. High quality hardware for enterprise networking.
Outstanding reliability for extended SR spans. Recognized instantly by Junos CLI with detailed feedback. These modules provide a stable 40G link for our production environment.
The QFX-QSFP-40G-ESR4-C is a QSFP+ 40GBase-ESR4 multimode fiber transceiver that delivers 40Gbps aggregate bandwidth over 850nm wavelength, supports up to 300 meters on OM3 fiber, complies with SFF-8436, and is fully Juniper compatible.
The QSFP+ 40GBase-ESR4 requires 50µm multimode fiber (OM3 or OM4); it supports up to 300 m on OM3 and up to 400 m on OM4 at 850 nm.
The ESR4 transceiver supports a maximum reach of 300 meters over OM3 multimode fiber and 400 meters over OM4 multimode fiber at 40 Gbps.
The QFX-QSFP-40G-ESR4-C operates at an 850 nm wavelength optimized for multimode fiber applications.
Yes. The QSFP+ transceiver is hot-pluggable and can be inserted or removed from a compatible port without powering down the host device.
This module is compatible with Juniper QFX, EX, and MX series switches and routers that provide QSFP+ 40GBase-ESR4 ports.
The module complies with IEEE 802.3ba 40GBase-ESR4, SFF-8436 QSFP+ MSA, and RoHS guidelines for environmental safety.
The QFX-QSFP-40G-ESR4-C consumes up to 3.5 watts under typical operating conditions.
The transceiver supports Digital Diagnostic Monitoring (DDM) for real-time reporting of optical power, temperature, supply voltage, and laser bias current.
The module operates between 0 °C and 70 °C (32 °F to 158 °F) ambient temperature in a standard data-center environment.
To install, simply insert the QSFP+ module into the switch or router QSFP+ port until the latch clicks; then connect the OM3/OM4 fiber cable to the module’s LC duplex receptacle.
No. The transceiver is plug-and-play with native Juniper firmware support; no additional drivers or firmware updates are required.
ESR4 optics are optimized for extended reach—up to 300 m on OM3—whereas SR4 optics support shorter distances (100 m on OM3) at the same 850 nm wavelength.
Use the Juniper CLI command 'show interfaces diagnostics optics' to confirm correct link status, power levels, and DDM metrics.
The QFX-QSFP-40G-ESR4-C includes a limited lifetime warranty and free technical support through the vendor’s certified Juniper support channels.
This QSFP+ 40GBase-ESR4 module is classified as a Class 1 laser product, safe under all reasonably anticipated conditions of operation.
United States
