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40G-QSFP-ESR4-C
40GBASE-ESR4 QSFP+ Optic MMF Brocade Compatible
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Federal agencies and Fortune 500 operations source through ORM Systems.
US Government & Defense
Enterprise Clients
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Since 2016, Enterprise-Trusted
Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
40G-QSFP-ESR4-C is a high-performance QSFP transceiver engineered for 40G Ethernet applications. It features support for 40G data transmission over multi‑mode fiber using LC connectors and is optimized for short‑range connectivity, making it ideal for data center and enterprise network environments.
This compact module offers a robust QSFP form factor with reliable performance in demanding network infrastructures. Designed to support Ethernet protocols, the 40G-QSFP-ESR4-C efficiently delivers high bandwidth and low latency, addressing use cases in data centers, telecom environments, and high‑performance computing platforms.
40G-QSFP-ESR4-C price is is available on request. Get immediate quote.
Request bulk order quote for 40G-QSFP-ESR4-C for additional pricing. Browse the full Brocade Networking Compatible Qsfp+ series or explore all Orm products.
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| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | QSFP | QSFP | QSFP | QSFP | QSFP+ |
| Data Rate | 40G | 40G | 40G | 40G | 40G |
| Connector Type | LC | LC | LC | MPO | LC |
| Wavelength | 850nm | 1310nm | 1310nm | 850nm | 850nm |
| Transmission Distance | Short-Range | Long-Range | Long-Range | Short-Range | Short-Range |
| Fiber Type | Multi-mode | Single-mode | Single-mode | Multi-mode | Multi-mode |
| Max Distance | 100m | 10 km | 10 km | 100 meters | 100 meters |
| Supported Protocols | Ethernet | Ethernet | Ethernet, Fibre Channel | Ethernet | Ethernet |
| Network Interface | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| 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 | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista |
| Product Name | 40G-QSFP-ESR4-C | 40G-QSFP-LR4-C | 40G-QSFP-LM4-C | 40G-QSFP-SR4-INT-C | 40G-QSFP-SR4-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.
Outstanding ESR4 reach. Extended distance over MMF is exactly as advertised. Very reliable and efficient module.
Perfect for our longer multimode runs. Significant savings while maintaining high-tier network performance and stability.
Consistent 40G performance over extended multimode fiber. Robust build and perfect Brocade compatibility. Very satisfied.
Top-tier extended SR4 optics. Clear signal margins and accurate DOM data for proactive network monitoring.
Reliable and cost-effective. These ESR4 modules deliver original-tier stability for our campus-wide 40G links.
The 40G-QSFP-ESR4-C is a Brocade-compatible QSFP+ optical transceiver that delivers 40 Gbps over multimode fiber using 850 nm VCSEL and MTP/MPO connectors.
This module supports OM3 and OM4 multimode fiber (MMF) for high-bandwidth, short-reach applications up to 70 m on OM3 and 100 m on OM4.
The maximum reach is 100 meters over OM4 multimode fiber at 40 Gbps.
It operates at an 850 nm nominal wavelength using a 4-channel VCSEL array.
Yes, it is firmware-tuned and tested for seamless interoperability with Brocade switches and routers.
It complies with IEEE 802.3ba 40GBASE-SR4, SFF-8436, and MSA QSFP+ specifications.
Yes, the QSFP+ form factor supports hot-insertion and removal without powering down the switch.
It uses an MPO/MTP 12-fibre push-pull rectangular connector for multimode fiber connections.
It consumes less than 3.5 Watts, adhering to QSFP+ power efficiency guidelines.
Yes, it interoperates with any switch or router that supports MSA-compliant QSFP+ 40GBASE-SR4 modules.
It operates reliably from 0 °C to 70 °C (32 °F to 158 °F) ambient temperature.
Align the module in the QSFP+ slot, insert until it clicks, then secure the latch; connect MPO/MTP fiber cable.
Check link status LEDs on the switch and use CLI/management software to confirm 40 Gbps link up and error-free counters.
No manual calibration is needed; the module is factory-tuned for optimal performance out of the box.
The MTBF exceeds 1 million hours under normal operating conditions per Telcordia standards.
It includes a limited lifetime warranty covering manufacturing defects and performance degradation.