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QSFP-40G-eSR4
40GBase-eSR4 Optical Transceiver,QSFP+,40G,Multi-mode (850nm...
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QSFP-40G-eSR4 is a QSFP transceiver designed for 40G Ethernet applications. It supports a 40G data rate and is engineered for short-range transmission over multi-mode fiber using an MPO connector. This module utilizes 850 nm optics and adheres to the electrical and optical performance standards required for modern data center interconnects and enterprise networks.
QSFP-40G-eSR4 offers a compact QSFP form factor with dimensions optimized for high-density applications. It is ideal for use in data centers, telecom backbones, and other enterprise network infrastructures where high-speed connectivity and reliable performance are critical. The module supports Ethernet protocols, making it a versatile solution for various network implementations.
QSFP-40G-eSR4 price is $257.00, a 89.2% saving from the Huawei list price of $2,386.00. QSFP-40G-eSR4 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for QSFP-40G-eSR4 for additional pricing. Browse the full Huawei Transceivers series or explore all Huawei products.
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| QSFP-40G-eSR4 |  OSX010B11 |  OMND10N10 |  SFP+-10G-AOC3M |  QSFP-40G-CU3M | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Active Optical Cable | Transceiver |
| Form Factor | QSFP | SFP+ | SFP+ | SFP+ | QSFP |
| Data Rate | 40G | 10G | 10G | 10G | 40G |
| Transmission Distance | Short-Range | Short-Range | Short-Range | Short-Range | Short-Range |
| Max Distance | 150 m | 300 meters | 300 meters | 3 meters | 3m |
| Supported Protocols | Ethernet | Ethernet, Fibre Channel | Ethernet | Ethernet | Ethernet |
| Network Interface | Fiber | Ethernet | Fiber | 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 |
| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista |
| Product Name | QSFP-40G-eSR4 | OSX010B11 10G SFP+ Transceiver Module | OMND10N10 10G SFP+ Transceiver | SFP+-10G-AOC3M | QSFP-40G-CU3M |
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.
Reliable 40G multimode performance for short reach connections.
Works well with breakout configurations.
Stable throughput across all lanes.
Good fit for dense data center racks.
Easy MPO connectivity.
Solid QSFP eSR4 optic.
The QSFP-40G-eSR4 is a QSFP+ form-factor 40GBase-eSR4 multimode optical transceiver module using 850 nm VCSEL technology and an MPO connector to deliver 40 Gbps aggregated bandwidth across four 10 Gbps lanes.
It is ideal for high-density, short-reach connectivity in data center interconnects, switch-to-switch links, blade server farms and SAN/NAS architectures requiring 40 Gbps Ethernet over multimode fiber.
It supports OM3/OM4 multimode fiber and uses a 12-fiber MPO (Multi-Fiber Push On) female connector for simultaneous four-lane transmission.
This module reliably transmits up to 300 meters over OM3 multimode fiber and up to 400 meters over OM4, meeting 40GBase-eSR4 specifications.
The transceiver operates at an 850 nm wavelength, optimized for multimode fiber links in short-reach 40 Gbps Ethernet networks.
The MPO connector aggregates four parallel 10 Gbps fibers into a single 12-fiber interface, simplifying high-density cabling and ensuring proper lane alignment.
Yes. It breaks out to four independent 10 Gbps SFP+ ports via an MPO-to-4×LC breakout cable, enabling connectivity to legacy SFP+ devices.
It is interoperable with most major OEM platforms (Cisco, Juniper, Arista, HPE, Dell, Brocade) that list 40G QSFP+ SR4/eSR4 support in their transceiver specifications.
Simply insert the module into an available QSFP+ slot until the latch clicks, connect the MPO cable or breakout harness, and verify link status via your device’s management interface.
The module consumes less than 1 W of power (typically 0.8 W), making it energy-efficient for high-density 40 Gbps deployments.
Yes. The QSFP+ module supports hot-plugging, allowing installation or removal without powering down the host system.
Use your switch or server’s diagnostic monitoring interface (DOM) to read real-time parameters such as optical power, temperature and supply voltage and ensure they fall within specification.
It meets IEEE 802.3bm 40GBase-eSR4 specifications, SFF-8636 (QSFP+ MSA) and RoHS environmental compliance standards.
The transceiver safely operates between 0 °C and 70 °C (32 °F to 158 °F) ambient temperature, covering typical data center conditions.
Absolutely. Its high density, low power consumption and 300 m multimode reach make it ideal for spine-leaf fabrics, ToR switches and cross-connects in data centers.
Verify the host vendor lists 40GBase-eSR4 QSFP+ in its approved transceiver matrix, use proper OM3/OM4 fiber and MPO cabling, and enable DOM diagnostics for real-time monitoring.
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