United States$5,000,000+
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Matthew Harding
5
Reliable 40G multimode performance for short reach connections.
QSFP-40G-eSR4
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40GBase-eSR4 Optical Transceiver,QSFP+,40G,Multi-mode (850nm...
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Name:
QSFP-40G-eSR4
- Description:
- 40GBase-eSR4 Optical Transceiver,QSFP+,40G,Multi-mode (850nm,0.3km,MPO)(Connect to four SFP+ Optical Transceiver)
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Huawei
- GTIN:
- 6920702795667
- Condition:
- Warranty:
- 3
- List Price:
$2,386.00
- Price:
$257.0089.2% off
Quantity:
1
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QSFP-40G-eSR4 Overview
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.
QSFP-40G-eSR4 Specifications
- Weight
- N/A
- Height
- N/A
- Depth
- N/A
- Width
- N/A
- Product Type
- Transceiver
- Wavelength
- 850 nm
- Transmission Distance
- Short-Range
- Fiber Type
- Multi-mode
- Supported Protocols
- Ethernet
- Network Interface
- Fiber
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco / Juniper / Huawei / Arista
- Form Factor
- QSFP
- Data Rate
- 40G
- Connector Type
- MPO
- Power Consumption
- 3.5W
- Max Distance
- 150 m
- Product Name
- QSFP-40G-eSR4
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 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 |
| Connector Type | MPO | LC | LC | N/A | N/A |
| Wavelength | 850 nm | 850nm | 850 nm | N/A | N/A |
| Transmission Distance | Short-Range | Short-Range | Short-Range | Short-Range | Short-Range |
| Fiber Type | Multi-mode | Multi-mode | Multi-mode | Multi-mode | N/A |
| 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 |
| Power Consumption | 3.5W | 3.5W | 3.5 W | N/A | N/A |
| 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 | N/A |
| 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 |
| Height | N/A | 0.33 inches | 0.60 inches | N/A | N/A |
| Width | N/A | 0.88 inches | 0.50 inches | N/A | N/A |
| Depth | N/A | 1.38 inches | 0.30 inches | N/A | N/A |
| Weight | N/A | 0.1 lbs | 0.1 lbs | N/A | N/A |
Reviews & Ratings
D
Daniel Frost
5
Works well with breakout configurations.
J
James Holloway
5
Stable throughput across all lanes.
P
Paul Edwards
5
Good fit for dense data center racks.
C
Christopher Lane
4
Easy MPO connectivity.
O
Oliver Grant
5
Solid QSFP eSR4 optic.
Questions & Answers
What is the QSFP-40G-eSR4 40GBase-eSR4 Optical Transceiver?
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.
Which applications benefit from the QSFP-40G-eSR4 transceiver?
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.
What fiber type and connector does QSFP-40G-eSR4 support?
It supports OM3/OM4 multimode fiber and uses a 12-fiber MPO (Multi-Fiber Push On) female connector for simultaneous four-lane transmission.
What is the maximum transmission distance of QSFP-40G-eSR4?
This module reliably transmits up to 300 meters over OM3 multimode fiber and up to 400 meters over OM4, meeting 40GBase-eSR4 specifications.
What wavelength does the QSFP-40G-eSR4 operate at?
The transceiver operates at an 850 nm wavelength, optimized for multimode fiber links in short-reach 40 Gbps Ethernet networks.
How does the MPO connector function in this module?
The MPO connector aggregates four parallel 10 Gbps fibers into a single 12-fiber interface, simplifying high-density cabling and ensuring proper lane alignment.
Can the QSFP-40G-eSR4 connect to SFP+ transceivers?
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.
Which switches and routers support the QSFP-40G-eSR4 module?
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.
How do I install the QSFP-40G-eSR4 transceiver in my network device?
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.
What is the typical power consumption of the QSFP-40G-eSR4?
The module consumes less than 1 W of power (typically 0.8 W), making it energy-efficient for high-density 40 Gbps deployments.
Is the QSFP-40G-eSR4 hot-pluggable?
Yes. The QSFP+ module supports hot-plugging, allowing installation or removal without powering down the host system.
How do I verify the transceiver’s performance after installation?
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.
What industry standards does the QSFP-40G-eSR4 comply with?
It meets IEEE 802.3bm 40GBase-eSR4 specifications, SFF-8636 (QSFP+ MSA) and RoHS environmental compliance standards.
What is the operating temperature range for QSFP-40G-eSR4?
The transceiver safely operates between 0 °C and 70 °C (32 °F to 158 °F) ambient temperature, covering typical data center conditions.
Can I use the QSFP-40G-eSR4 in a data center environment?
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.
How can I ensure compatibility and interoperability?
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.