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QSFP-40G-ER4
40GBase-ER4 Optical Transceiver,QSFP+,40G,Single-mode Module...
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Overview of QSFP-40G-ER4
QSFP-40G-ER4 is a QSFP transceiver that supports a 40G data rate for Ethernet applications. It is designed with LC connectors and is optimized for extended-range transmission over single-mode fiber, providing distances up to 40 km. This module adheres to industry-standard QSFP form factor dimensions, making it ideal for high-performance data centers, telecom networks, and enterprise interconnects where long-reach, high-density connectivity is essential.
This transceiver is engineered to support Ethernet protocols and delivers reliable performance in demanding network environments. Its compact physical dimensions and robust design simplify integration into existing infrastructures, while its compatibility with major network vendors such as Cisco, Juniper, Huawei, and Arista further enhance its deployment versatility in scalable network solutions.
QSFP-40G-ER4 price is $3,246.00, a 96.1% saving from the Huawei list price of $82,857.00. QSFP-40G-ER4 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for QSFP-40G-ER4 for additional pricing. Browse the full Huawei Transceivers series or explore all Huawei products.
Leverage QSFP-40G-ER4-40GBase-ER4 optical transceivers (QSFP+, 40G, single-mode 1310nm, LC, 40km) to link primary and disaster-recovery data centers across a 30–40km campus backbone. Outcome: delivers high-throughput, low-latency 40Gbps data replication, simplified network architecture and predictable performance under heavy east-west traffic.
Deploy QSFP-40G-ER4-40GBase-ER4 modules for ultra-low-latency 40G single-mode connectivity (1310nm, LC) up to 40km between trading floors and offsite risk-management hubs. Outcome: ensures real-time market data synchronization, sub-microsecond latency and carrier-grade reliability for competitive trading execution.
Upgrade metropolitan backbone rings using QSFP-40G-ER4-40GBase-ER4 single-mode transceivers (40G, 1310nm, LC, 40km) on existing fiber infrastructure. Outcome: scales bandwidth to 40Gbps, extends reach without costly splicing, reduces OPEX and supports high-density aggregation for mobile, cloud and edge-compute services.
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| QSFP-40G-ER4 |  SFP-10G-AC7M |  CXP-100G-CU1M5 |  OSX070002 |  SFP-FC2G-LW | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Direct Attach Copper Cable Assembly | Transceiver | Transceiver |
| Form Factor | QSFP | SFP+ | QSFP28 | SFP+ | SFP |
| Data Rate | 40G | 10G | 100G | 10G | 2G |
| Connector Type | LC | Direct Attach Copper (DAC) - SFP+ | QSFP28 | LC | LC |
| Transmission Distance | Extended-Range | Short-Range | Short-Range | Short-Range | Long-Range |
| Max Distance | 40 km | 7 meters | 1.5m | 300 meters | 10 km |
| Supported Protocols | Ethernet | 10G Ethernet | Ethernet | Ethernet | Fibre Channel |
| Network Interface | Ethernet | Ethernet | Ethernet | Fiber | 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 |
| 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-ER4 | SFP-10G-AC7M | CXP-100G-CU1M5 | OSX070002 10G SFP+ Optical Transceiver | SFP-FC2G-LW |
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 long-range ER4 module, delivers stable 40G connectivity over single-mode fiber. Excellent for enterprise and campus networks.
Consistent performance across 40km distances. Easy to install and manage.
High-quality transceiver with minimal latency. Perfect for critical backbone links.
Durable optical module. Supports extended range with excellent signal integrity.
Works seamlessly with Cisco switches. Reliable for long-distance applications.
The QSFP-40G-ER4 is a 40GBase-ER4 optical transceiver module designed for single-mode fiber, supporting 40 km links at 1310 nm with LC duplex connectors.
QSFP-40G-ER4 is compatible with any QSFP+ port on switches, routers and network interface cards that support 40 GBase-ER4 optics over single-mode fiber.
This transceiver supports up to 40 km link distance on single-mode fiber (SMF) using standard LC duplex connectors.
The QSFP-40G-ER4 operates at a nominal wavelength of 1310 nm, optimized for long-reach single-mode applications.
Single-mode fiber (SMF) with LC duplex connectors is required to achieve the rated 40 km distance at 1310 nm.
Yes. The QSFP-40G-ER4 is a hot-pluggable module that can be inserted or removed without powering down the host device.
The module uses four 10 Gbps lanes aggregated to deliver a total of 40 Gbps per QSFP+ port.
Typical power consumption is 3.5 W, conforming to industry QSFP+ power budgets.
Align the QSFP+ module with the port guide rails, insert until it clicks, and secure the latch. Verify link status in your switch interface.
Yes. It supports SFF-8436 compliant DOM for real-time monitoring of optical power, temperature, voltage and bias current.
No. QSFP-40G-ER4 is specifically designed for single-mode fiber at 1310 nm and will not meet specifications on multimode.
Standard commercial-grade modules operate from 0 °C to 70 °C. Industrial versions may extend from -40 °C to 85 °C.
Yes. The QSFP-40G-ER4 meets RoHS directives, ensuring it is free of lead, mercury, cadmium and other restricted substances.
Most vendors offer a lifetime warranty or 3- to 5-year limited warranty covering manufacturing defects.
Use switch diagnostics to check DOM parameters, verify Tx/Rx optical power levels and ensure error-free 40 Gbps traffic.
Purchase from authorized network hardware resellers or directly from certified manufacturers to guarantee genuine QSFP+ ER4 optics.
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