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QSFP-40G-SR4-C
40GBase-SR4 QSFP+ MMF Module Cisco Compatible
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QSFP-40G-SR4-C is a QSFP transceiver module engineered for 40G Ethernet applications, offering high-speed data transmission over short-range distances. It utilizes multi-mode fiber with MPO connectors and operates at an 850nm wavelength, making it ideal for data centers, enterprise networks, and telecom environments.
Designed in a compact QSFP form factor with standard dimensions for pluggable optics, the QSFP-40G-SR4-C ensures reliable performance and interoperability with leading networking equipment. Its support for Ethernet protocols and optimized transmission characteristics make it a robust solution for high-density optical interconnects in modern infrastructures.
QSFP-40G-SR4-C price is is available on request. Get immediate quote.
Request bulk order quote for QSFP-40G-SR4-C for additional pricing. Browse the full Cisco Compatible Qsfp+ series or explore all Orm products.
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| QSFP-40G-SR4-C |  QSFP-4X10G-LRL-S-C |  WSP-Q40GLR4L-C |  QSFP-40G-ER4-C |  QSFP-40G-CSR4-C | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | QSFP | QSFP | QSFP+ | QSFP | QSFP |
| Data Rate | 40G | 4x10G (40G) | 40G | 40G | 40G |
| Connector Type | MPO | LC | LC | LC | LC |
| Wavelength | 850nm | 1310 nm | 1310nm | 1310 nm | N/A |
| Transmission Distance | Short-Range | Long-Range | Long-Range | Extended-Range | Short-Range |
| Fiber Type | Multi-mode | Single-mode | Single-mode | Single-mode | N/A |
| Max Distance | 100m (OM3)/150m (OM4) | 10 km | 10 km | 40 km | N/A |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Network Interface | Ethernet | Ethernet | Fiber | Fiber | Ethernet |
| Power Consumption | 4.2W | 3.0 W | 6.5W | 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 | N/A | 3.3V |
| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco | Cisco |
| Product Name | QSFP-40G-SR4-C | QSFP-4X10G-LRL-S-C | WSP-Q40GLR4L-C 40G QSFP+ Long-Range Transceiver | QSFP-40G-ER4-C | QSFP-40G-CSR4-C |
| Height | N/A | 0.47 inches | 0.7 inches | N/A | N/A |
| Width | N/A | 0.94 inches | 0.9 inches | N/A | N/A |
| Depth | N/A | 1.5 inches | 1.2 inches | N/A | N/A |
| Weight | N/A | 0.1 lbs | 0.12 lbs | N/A | N/A |
Excellent 40G SR4 performance over MMF. This QSFP+ module is stable and reliable. Full compatibility with our Cisco Nexus 3000 switches. Great value.
Exceptional signal integrity. This SR4 module delivers professional stability for our high-speed data center links. No packet loss or latency issues since installation.
Consistent 40G throughput. This module is robust and was recognized instantly. A solid, cost-effective solution for our short-reach fiber backbone. Very satisfied.
High-quality SR4 module. It integrated seamlessly into our existing 40G setup. Robust build and steady signaling. Highly recommended for enterprise networking.
Reliable and robust 40G SR4 optic. It delivers the professional performance our backbone requires. Easy installation and flawless Cisco compatibility. Excellent choice.
The QSFP-40G-SR4-C is a 40GBase-SR4 QSFP+ multimode fiber transceiver module compatible with Cisco equipment, designed for high-density 40 Gbps data center links.
Yes. The QSFP-40G-SR4-C is fully compatible with Cisco QSFP+ ports and supports Cisco IOS and NX-OS platforms.
It supports up to 100 meters over OM3 multimode fiber and up to 150 meters over OM4 multimode fiber at 40 Gbps.
This module is optimized for OM3 and OM4 multimode fiber with an MPO/MTP 12-fiber connector interface.
It operates at 40 Gbps aggregate with four 10 Gbps lanes, using an 850 nm VCSEL laser wavelength.
The module uses a standard MPO/MTP 12-fiber female connector for multimode fiber connectivity.
Yes. It supports 4×10 Gbps breakout using a compatible MPO-to-LC fanout cable on most Cisco platforms.
Yes. The QSFP-40G-SR4-C module is hot-pluggable, allowing insertion or removal without powering down the system.
Typical power consumption is ≤1.5 W, ensuring low energy usage in high-density deployments.
It meets IEEE 802.3ba 40GBase-SR4 and MSA QSFP+ specifications for interoperability.
Align the module with the port, slide it in until it latches, connect the MPO/MTP cable, and verify link status via your switch management interface.
Yes. It can be configured for four 10 Gbps channels over an MPO-to-4LC fanout cable to support legacy 10 Gigabit Ethernet ports.
The module operates reliably from 0 °C to 70 °C (32 °F to 158 °F) ambient temperature.
The Cisco-compatible part number is QSFP-40G-SR4-C.
Yes. It includes a one-year warranty covering manufacturing defects and performance compliance.
Ideal for data center spine-leaf architectures, HPC clusters, SAN, and switch interconnects requiring 40 Gbps multimode links.