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40G-QSFP-ER4-C
40GBASE-ER4 QSFP+ Optic 30km SMF Brocade Compatible
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40G-QSFP-ER4-C is a QSFP transceiver module engineered for 40G Ethernet applications. It features a compact QSFP form factor, supports a 40G data rate and uses LC connectors with single-mode fiber to achieve extended-reach transmission distances of up to 40 km, making it ideal for high-performance data center interconnects and telecom networks.
This transceiver is designed to comply with industry Ethernet standards and is optimized for reliable long-range communication in enterprise networks and metro backbones. With officially documented dimensions and environmental ratings, the 40G-QSFP-ER4-C meets the rigorous demands of high-speed digital infrastructure while ensuring efficient power consumption and compatibility with leading network equipment vendors.
40G-QSFP-ER4-C price is is available on request. Get immediate quote.
Request bulk order quote for 40G-QSFP-ER4-C for additional pricing. Browse the full Brocade Networking Compatible Qsfp+ series or explore all Orm products.
To get the detailed certification, please go to the Compliance Center.
| 40G-QSFP-ER4-C |  40G-QSFP-ESR4-C |  40G-QSFP-LR4-C |  40G-QSFP-SR4-C |  40G-QSFP-SR4-INT-C | |
|---|---|---|---|---|---|
| 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 | LC | MPO |
| Wavelength | 1310 nm | 850nm | 1310nm | 850nm | 850nm |
| Transmission Distance | Extended-Range | Short-Range | Long-Range | Short-Range | Short-Range |
| Fiber Type | Single-mode | Multi-mode | Single-mode | Multi-mode | Multi-mode |
| Max Distance | 40 km | 100m | 10 km | 100 meters | 100 meters |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Network Interface | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Power Consumption | 6.5W | 3.5W | 6.6W | 4W | 4.5W |
| 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-ER4-C | 40G-QSFP-ESR4-C | 40G-QSFP-LR4-C | 40G-QSFP-SR4-C | 40G-QSFP-SR4-INT-C |
| Height | N/A | N/A | 0.68 inches | 0.66 inches | N/A |
| Width | N/A | N/A | 1.17 inches | 1.7 inches | N/A |
| Depth | N/A | N/A | 1.39 inches | 1.8 inches | N/A |
| Weight | N/A | N/A | 0.15 lbs | 0.11 lbs | N/A |
Exceptional 30km ER4 reach. Stable 40G signaling and perfect compatibility for our regional backbone distribution.
Consistent 40Gbps speeds over long distances. Recognized immediately with zero errors. Solid and dependable optics.
Professional 40km-capable optics. Significant ROI while maintaining original-tier reliability and performance. Very satisfied.
Steady and dependable long-range link. Clear signal power and robust build quality for our network nodes.
Carrier-class reliability at 30km. These modules provide accurate data and high stability in remote enclosures.
The 40G-QSFP-ER4-C supports single-mode fiber links up to 30 km at an operating wavelength of 1310 nm.
It supports standard single-mode fiber (SMF) with a 9/125 µm core diameter for WAN and data center interconnects.
Yes, the 40G-QSFP-ER4-C is fully compatible and factory-tested with Brocade® 40G QSFP+ ports.
The module operates at 1310 nm to meet IEEE 802.3ba 40GBASE-ER4 specifications.
Yes, the 40G-QSFP-ER4-C is hot-pluggable for tool-free installation and removal without powering down the system.
Typical power dissipation is under 3.5 W per module during normal operation.
Yes, it includes Digital Diagnostic Monitoring (DDM) for real-time monitoring of parameters like optical power and temperature.
It complies with IEEE 802.3ba 40GBASE-ER4 and QSFP+ MSA specifications for interoperability.
Yes, with up to 30 km reach, it is ideal for long-haul inter-rack and data center interconnect applications.
The module operates reliably in ambient temperatures from 0 °C to 70 °C.
Insert the module into a compatible QSFP+ port until it clicks, then secure the latch—no tools required.
The 40G-QSFP-ER4-C includes a one-year limited warranty against manufacturing defects.
Yes, it interoperates with any MSA-compliant 40G QSFP+ port from third-party vendors.
The module uses the QSFP+ (Quad Small Form-factor Pluggable Plus) form factor.
Standard delivery lead time is 3–5 business days, subject to stock availability.
Check fiber polarity, inspect connectors for damage, verify DOM readings, and ensure switch firmware supports 40GBASE-ER4.