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QSFP-40G-SR4-S
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- 40GBASE-SR4 QSFP Trnscvr Module, MPO Conn, Enterprise-Class
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QSFP-40G-SR4-S
40GBASE-SR4 QSFP Trnscvr Module, MPO Conn, Enterpr...
$2,022.36
$323.58
49 in Global Warehouse
$323.58
84% off
TRUSTED, TRIED, PROVEN
QSFP-40G-SR4-S Overview
The QSFP-40G-SR4-S is a high-performance Cisco QSFP+ transceiver designed for reliable 40-Gigabit Ethernet connectivity over short-range multimode fiber. This Cisco QSFP-40G-SR4-S module supports 40GBASE-SR4 applications, enabling seamless deployment across enterprise switching, data center architectures, and high-density cloud environments. With strong optical performance, it supports transmission distances up to 100 meters on OM3 fiber and 150 meters on OM4 fiber, making it ideal for short-range, high-bandwidth 40G uplinks and aggregation layers.
Built for consistent signal integrity and broad Cisco platform compatibility, the QSFP 40G SR4 S module provides low-latency performance, high throughput, and simple plug-and-play installation. Its hot-swappable design allows rapid integration or replacement without service interruption, offering a scalable and cost-efficient solution for organizations expanding their 40-Gigabit multimode fiber infrastructure.
Capabilities
Short-Range 40G Fiber Connectivity
Supports up to 100m on OM3 and 150m on OM4 multimode fiber.
40GBASE-SR4 Performance
Optimized for short-distance 40-Gigabit Ethernet applications across enterprise and data center networks
Hot-Swappable Design
Allows installation or replacement without impacting network operations.
Low-Latency Optical Transmission
Delivers high-throughput, stable performance for demanding workloads.
Multimode Fiber Support
Enables flexible deployment across various multimode cabling infrastructures.
Supported Hardware Models
TThe QSFP-40G-SR4-S module is compatible with major Cisco platforms, including :
- Cisco Catalyst 4500X Series
- Cisco Catalyst 6800 Series
- Cisco Nexus 3000 Series
- Cisco Nexus 5000 Series
- Cisco Nexus 7000 Series
- Cisco Nexus 9000 Series
This broad compatibility ensures seamless integration across enterprise, cloud, and high-density data center environments.
Why Choose the QSFP-40G-SR4-S
- Ideal for short-range 40G multimode fiber deployments
- Broad compatibility across Cisco Catalyst and Nexus switches
- Delivers stable, high-performance 40G optical connectivity
- Supports plug-and-play installation for simplified scaling
- A cost-efficient option for expanding 40G network capacity
What is the price of QSFP-40G-SR4-S?
Lowest price of QSFP-40G-SR4-S is $ 323.58. Shop now! Get further exclusive discounts with bulk quotation on QSFP-40G-SR4-S
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QSFP-40G-SR4-S 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 meters |
| Supported Protocols | Ethernet |
| Network Interface | Ethernet |
| Power Consumption | 4 W |
| 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-S |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
QSFP-40G-SR4-S Use Case
Hyperscale Data Center Spine-Leaf Aggregation with QSFP-40G-SR4-S
In a multi-tenant data center deploying a spine-leaf topology, the QSFP-40G-SR4-S module with MPO connectivity delivers 160 Gbps of aggregate bandwidth per QSFP port. By enabling high-density, low-latency east-west traffic and reducing fiber runs by 75%, operators achieve predictable performance for virtualization and containerized workloads while lowering OPEX through simplified cabling and cooling.
Enterprise Campus Backbone Migration from 10G to 40G
A global enterprise upgrades its core distribution layer to 40 GbE using QSFP-40G-SR4-S transceivers over existing multimode fiber trunks. This migration quadruples backbone capacity without additional fiber investment, accelerates application response times by up to 60%, and future-proofs the network for IoT, video conferencing, and cloud access with enterprise-class reliability and simplified MPO terminations.
High-Performance Computing Cluster Interconnect
In an HPC cluster for AI training and scientific simulation, QSFP-40G-SR4-S modules enable ultra-high throughput inter-node links over parallel MPO fiber. Engineers realize sub-2 µs latencies and sustained 40 Gbps per link, accelerating model convergence by 30% and maximizing GPU/CPU utilization. The enterprise-class design ensures consistent performance under heavy compute loads and eases rack-to-rack deployment.
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 / Arista |
| Connector Type | MPO | QSFP | Direct Attach | LC | MPO |
| Data Rate | 40G | 40G | 4x10G | 40G | 40G |
| Depth | N/A | N/A | N/A | 1.8 inches | N/A |
| Fiber Type | Multi-mode | Multi-mode | Multi-mode | Single-mode | N/A |
| Form Factor | QSFP | QSFP | QSFP | QSFP+ | QSFP |
| Height | N/A | N/A | N/A | 0.54 inches | N/A |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Distance | 100 meters | 3 m | 7 meters | 10 km | 7m |
| Network Interface | Ethernet | Fiber | Ethernet | Fiber | Ethernet |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | 4 W | N/A | N/A | 4.8W | N/A |
| Product Name | QSFP-40G-SR4-S | QSFP-H40G-AOC3M= | QSFP-4X10G-AOC7M= | WSP-Q40GLR4L | QSFP-H40G-AOC7M= |
| 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 | Ethernet | Ethernet |
| Transmission Distance | Short-Range | Short-Range | Short-Range | Long-Range | Short-Range |
| Wavelength | 850 nm | N/A | N/A | 1271/1291/1311/1331 nm | N/A |
| Weight | N/A | N/A | N/A | 0.2 lbs | N/A |
| Width | N/A | N/A | N/A | 0.54 inches | N/A |
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Questions & Answers
Q
What is the QSFP-40G-SR4-S 40GBASE-SR4 QSFP transceiver module?
A
The QSFP-40G-SR4-S is an enterprise-class, hot-pluggable QSFP+ transceiver supporting 40GBase-SR4 over multimode fiber with an MPO connector.
Q
Which IEEE standard does QSFP-40G-SR4-S comply with?
A
It complies with IEEE 802.3ba for 40GBase-SR4, ensuring full interoperability with compliant network equipment.
Q
What fiber types and link distances are supported?
A
It supports OM3 multimode fiber up to 100 m and OM4 multimode fiber up to 150 m using a 12-fiber MPO/MTP cable.
Q
What connector type does the QSFP-40G-SR4-S use?
A
The module uses a 12-fiber MPO/MTP connector for parallel optics, enabling four 10 Gbps lanes.
Q
Is the QSFP-40G-SR4-S hot-swappable?
A
Yes, it is hot-pluggable per the QSFP+ MSA specification, allowing live module installation or removal.
Q
Does this module support digital diagnostics monitoring (DDM)?
A
Yes, it features SFF-8472 digital diagnostics for real-time monitoring of temperature, voltage, bias current, and optical power.
Q
What is the power consumption of the QSFP-40G-SR4-S?
A
Typical power consumption is less than 1.5 W, keeping system power budgets low.
Q
What operating temperature range does it support?
A
It operates reliably from 0 °C to 70 °C (32 °F to 158 °F) ambient temperature.
Q
Which network platforms are compatible with this transceiver?
A
It interoperates with any IEEE-compliant 40G QSFP+ port, including major brands like Cisco, Juniper, Arista, and others.
Q
Can I use the QSFP-40G-SR4-S for data center spine-leaf architecture?
A
Yes, it is ideal for high-density, short-reach links in spine-leaf fabrics and server connections in modern data centers.
Q
Is QSFP-40G-SR4-S compatible with OM1 or OM2 fibers?
A
No, it is optimized solely for OM3 and OM4 multimode fibers; performance on OM1/OM2 is not guaranteed.
Q
What is the module’s reliability rating (MTBF)?
A
The QSFP-40G-SR4-S delivers a mean time between failures (MTBF) exceeding 1,000,000 hours for mission-critical uptime.
Q
How do I clean MPO/MTP connectors properly?
A
Use a dedicated MPO/MTP cleaning cassette or lint-free wipes and alcohol following the fiber cleaning kit instructions.
Q
What warranty and support are provided?
A
The module includes a limited lifetime warranty plus free technical support and RMA services.
Q
What cabling do I need to install this 40GBase-SR4 module?
A
Install with a 12-fiber OM3 or OM4 MTP-to-MTP patch cable rated for 40GBase-SR4 applications.
Q
How is the QSFP-40G-SR4-S identified in system diagnostics?
A
It is identified via I²C SFF-8472 memory mapping, reporting vendor name, part number, serial number, and real-time diagnostics.
