United StatesName:
Added to cart 28 times recently
In stock - Ready to Ship
$82,857.00
$3,246.0096.1% off
Quantity:
Business price:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
QSFP-40G-ER4
40GBase-ER4 Optical Transceiver,QSFP+,40G,Single-mode Module...
TRUSTED, TRIED, PROVEN
Inventory Delivered By
& Verified By
Solutions Powered By
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.
To get the detailed certification, please go to the Compliance Center.
 QSFP-40G-ER4 |  SFP-10G-AC7M |  CXP-100G-CU1M5 |  OSX070002 |  SFP-FC2G-LW | |
|---|---|---|---|---|---|
| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista |
| Connector Type | LC | Direct Attach Copper (DAC) - SFP+ | QSFP28 | LC | LC |
| Data Rate | 40G | 10G | 100G | 10G | 2G |
| Depth | 3.4 inches | N/A | N/A | 0.35 inches | N/A |
| Fiber Type | Single-mode | N/A | N/A | Multi-mode | Single-mode |
| Form Factor | QSFP | SFP+ | QSFP28 | SFP+ | SFP |
| Height | 0.38 inches | N/A | N/A | 0.125 inches | N/A |
| Input Voltage | 3.3V | 3.3V | N/A | 3.3V | 3.3V |
| Max Distance | 40 km | 7 meters | 1.5m | 300 meters | 10 km |
| 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 |
| Power Consumption | 3.5 W | N/A | N/A | 3.5W | N/A |
| Product Name | QSFP-40G-ER4 | SFP-10G-AC7M | CXP-100G-CU1M5 | OSX070002 10G SFP+ Optical Transceiver | SFP-FC2G-LW |
| Product Type | Transceiver | Transceiver | Direct Attach Copper Cable Assembly | Transceiver | Transceiver |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Protocols | Ethernet | 10G Ethernet | Ethernet | Ethernet | Fibre Channel |
| Transmission Distance | Extended-Range | Short-Range | Short-Range | Short-Range | Long-Range |
| Wavelength | 1310 nm | N/A | N/A | 850nm | 1310 nm |
| Weight | 0.22 lbs | N/A | N/A | 0.1 lbs | N/A |
| Width | 0.83 inches | N/A | N/A | 0.5 inches | N/A |
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.