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QSFP-40G-SR4-MM850
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- QSFP+ 40GBASE Optical Transceiver Module (850nm,100m,SR4, Support 40G to 4*10G)
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QSFP-40G-SR4-MM850 Overview
QSFP-40G-SR4-MM850 is a high-performance QSFP transceiver module engineered for 40G Ethernet applications over multi-mode fiber. It supports a 40G data rate and employs an MPO connector interface with an 850 nm wavelength, delivering short-range transmission ideal for data centers, enterprise networks, telecom environments, and high-performance computing infrastructures.
This compact transceiver module is designed with a standardized QSFP form factor that minimizes physical dimensions while ensuring reliable signal integrity and low latency. It meets stringent protocol requirements for Ethernet applications and is well suited for high-density deployments where efficient, short-reach optical connectivity is critical.
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QSFP-40G-SR4-MM850 Specifications
| Product Type | Transceiver |
| Form Factor | QSFP |
| Data Rate | 40G |
| Connector Type | MPO |
| Wavelength | 850 nm |
| Transmission Distance | Short-Range |
| Fiber Type | Multi-mode |
| Max Distance | 100 to 150 meters |
| Supported Protocols | Ethernet |
| Network Interface | Fiber |
| Power Consumption | N/A |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | 3.3V |
| Compatibility | Cisco, Juniper, Huawei, Arista |
| Product Name | QSFP-40G-SR4-MM850 |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
QSFP-40G-SR4-MM850 Use Case
Hyperscale Data Center Spine-Leaf Uplinks with QSFP-40G-SR4-MM850-QSFP+
Deploy the QSFP-40G-SR4-MM850-QSFP+ 40GBASE optical transceiver in a hyperscale data center to link spine and leaf switches over OM4 multimode fiber. Achieve 100 m reach, native 4×10 GbE breakout, higher port density, and sub-microsecond latency—doubling throughput and reducing OPEX by 30 %.
High-Performance Computing Cluster Interconnect using QSFP-40G-SR4-MM850-QSFP+
In an HPC research environment, install QSFP-40G-SR4-MM850-QSFP+ modules to connect GPU compute nodes via existing multimode fiber. Leverage 40 GbE bandwidth, 100 m reach, and 4×10 GbE support to eliminate network bottlenecks, reduce tail latency by 20 %, and accelerate large-scale simulations by 35 %.
Enterprise Campus Core Ring Upgrade with QSFP-40G-SR4-MM850-QSFP+
Upgrade a multi-building enterprise campus core ring using QSFP-40G-SR4-MM850-QSFP+ over existing OM3 fiber. Quadruple core-to-distribution capacity, utilize 4×10 GbE breakout, cut inter-building latency by 50 %, and enable seamless VoIP and video conferencing without costly fiber re-cabling.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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|---|---|---|---|---|---|
| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei |
| Connector Type | MPO | LC | LC | MPO | LC |
| Data Rate | 100G | 10G | 100G | 40G | 1G |
| Depth | N/A | 1.0 inches | 0.5 inches | N/A | 2.17 inches |
| Fiber Type | Multi-mode | Multi-mode | Multi-mode | Multi-mode | Single-mode |
| Form Factor | QSFP | SFP+ | QSFP | QSFP | SFP |
| Height | N/A | 0.25 inches | 0.7 inches | N/A | 0.54 inches |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Distance | 100 meters | 300 meters | 100 meters | 100 to 150 meters | 10 km |
| Network Interface | Fiber | Fiber | 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 | N/A | 2.5W | 4.0W | N/A | 2.5W |
| Product Name | QSFP-100G-SR4-MM850 | PSR150-A1-GL | LSWM3STK High-Speed QSFP Transceiver | QSFP-40G-SR4-MM850 | LSPM1FANSB 1G SFP Transceiver |
| Product Type | Transceiver | Transceiver | Transceiver | 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 | Ethernet | Ethernet / Fibre Channel | Ethernet | Ethernet |
| Transmission Distance | Short-Range | Short-Range | Short-Range | Short-Range | Long-Range |
| Wavelength | 850 nm | 850nm | 850 nm | 850 nm | 1310nm |
| Weight | N/A | 0.1 lbs | 0.08 lbs | N/A | 0.1 lbs |
| Width | N/A | 0.8 inches | 1.1 inches | N/A | 0.55 inches |
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Questions & Answers
Q
What is the QSFP-40G-SR4-MM850 optical transceiver module?
A
The QSFP-40G-SR4-MM850 is a hot-swappable QSFP+ transceiver that delivers 40Gbps over OM3/OM4 multimode fiber up to 100 meters using an 850 nm VCSEL interface.
Q
Which fiber types and distances does the QSFP-40G-SR4-MM850 support?
A
It supports OM3 fiber up to 100 m and OM4 fiber up to 150 m at 40 Gbps via an MPO/MTP 12-fiber connector.
Q
Can the QSFP-40G-SR4-MM850 be used for 4×10G breakout applications?
A
Yes, the module natively supports 4×10G breakout by mating with an MPO-to-LC harness cable and mapping each transmit/receive lane.
Q
What wavelength does the QSFP-40G-SR4-MM850 operate at?
A
It operates at an 850 nm central wavelength optimized for short-reach multimode fiber.
Q
Is the QSFP-40G-SR4-MM850 transceiver interoperable with major switch brands?
A
Yes, it is fully compliant with IEEE 802.3bm and MSA specifications, ensuring interoperability with leading Cisco, Juniper, Arista, Huawei and other QSFP+ ports.
Q
Does the QSFP-40G-SR4-MM850 support digital diagnostics monitoring (DDM)?
A
Yes, it provides real-time monitoring of optical power, temperature, voltage and bias current via the I2C management interface.
Q
What certifications and environmental standards does the QSFP-40G-SR4-MM850 meet?
A
It is CE- and FCC-compliant, RoHS-3 certified, and operates from 0°C to 70°C ambient temperature.
Q
How do I install the QSFP-40G-SR4-MM850 in my network switch?
A
Simply insert the module into a compatible QSFP+ slot until it clicks, then connect the MPO/MTP cable and secure the latch.
Q
Can I hot-swap the QSFP-40G-SR4-MM850 transceiver?
A
Yes, the module supports hot-insertion and removal without powering down your switch or router.
Q
What is the expected MTBF for the QSFP-40G-SR4-MM850?
A
The module has an MTBF exceeding 2,000,000 hours under normal operating conditions.
Q
How does the QSFP-40G-SR4-MM850 handle bit error rate (BER)?
A
It guarantees a BER better than 1×10⁻¹² at the rated reach and data rate.
Q
What power consumption should I expect from the QSFP-40G-SR4-MM850?
A
Typical power consumption is below 2.5 W, ensuring minimal impact on system power budgets.
Q
Are there any special maintenance requirements for the QSFP-40G-SR4-MM850?
A
No special maintenance is required; periodic cleaning of MPO/MTP end faces is recommended to maintain optimal performance.
Q
What warranty does the QSFP-40G-SR4-MM850 come with?
A
It includes a standard one-year limited warranty covering defects in materials and workmanship.
Q
Which applications are ideal for the QSFP-40G-SR4-MM850?
A
It is ideal for data center spine/leaf architectures, high-density aggregation, HPC clusters and enterprise LAN interconnects.
Q
How can I verify the QSFP-40G-SR4-MM850 performance after installation?
A
Use DDM data and an optical power meter to confirm Tx/Rx power levels, then run Ethernet link tests to verify error-free 40 Gbps operation.
