MA-QSFP-40G-SR4 Cisco 40Gigabit Transceiver QSFP+ MMF

Cisco MA-QSFP-40G-SR4 Meraki 40G QSFP+ Transceiver

High-Performance 40 Gigabit Optical Networking Module

The Cisco MA-QSFP-40G-SR4 is a robust QSFP+ transceiver designed to deliver ultra-fast 40 Gigabit Ethernet connectivity over multi-mode fiber infrastructure. Built for enterprise-grade networking environments, this optical module ensures stable, high-speed data transmission for modern data centers and switching systems.

Key Manufacturer & Identification Details

• Brand: Cisco Systems
• Part Number: MA-QSFP-40G-SR4
• Device Category: Optical Transceiver Module
• Form Factor: QSFP+

Technical Features and Core Capabilities

Designed for Advanced Data Networking Environments

This transceiver module is engineered to support high-bandwidth applications, making it suitable for cloud computing, enterprise switching, and high-density network architectures. It integrates seamlessly into compatible Cisco Meraki switching platforms.

Core Specifications Breakdown

• Supports 40GBASE-SR4 Ethernet technology for high-speed communication
• Operates using optical fiber media for enhanced signal integrity
• Compatible with multi-mode fiber (MMF) environments
• Provides a single MPO interface port for 40G connectivity

Compatibility and Integration

Optimized for Meraki MS400 Series Switches

The MA-QSFP-40G-SR4 transceiver is fully compatible with Cisco Meraki MS400 Series networking hardware, ensuring smooth deployment and reliable performance in scalable network infrastructures.

Supported Network Equipment

• Meraki MS400 Series switches
• Enterprise-level switching platforms
• High-speed backbone network systems

Performance and Application Use Cases

Built for High-Speed Optical Connectivity

This QSFP+ module is widely used in environments requiring rapid data transfer, low latency, and high reliability, especially in fiber-based network backbones.

Typical Applications

• Data center interconnects
• High-performance computing networks
• Enterprise aggregation and core switching
• Cloud infrastructure deployments

Optical and Ethernet Technology Details

Advanced 40GBASE-SR4 Architecture

The transceiver leverages 40 Gigabit Ethernet technology with SR4 short-range optical signaling, optimized for multi-mode fiber channels to ensure fast and efficient data transmission.

Technical Communication Standards

• Ethernet standard: 40 Gigabit Ethernet
• Network protocol: 40GBASE-SR4
• Transmission medium: Optical fiber cable systems
• Fiber compatibility: Multi-mode fiber optimized

Physical and Interface Characteristics

QSFP+ Form Factor Design

The compact QSFP+ design enables high-density port installations while maintaining efficient thermal and power performance in enterprise network setups.

Interface Configuration

• 1 x MPO optical network port
• High-density QSFP+ module layout
• Plug-and-play compatible design

Cisco MA-QSFP-40G-SR4 Meraki 40 Gigabit Transceiver QSFP+

The Cisco MA-QSFP-40G-SR4 Meraki 40 Gigabit Transceiver QSFP+ Multi Mode Fiber represents a high-performance optical module designed to meet the ever-increasing demands of modern data centers, enterprise networks, and cloud infrastructures. This category of 40 Gigabit QSFP+ transceivers is engineered to deliver reliable, high-speed connectivity across short-range fiber links using multi-mode fiber (MMF) technology. The MA-QSFP-40G-SR4 module supports parallel optics transmission, enabling efficient data transfer across multiple fiber strands simultaneously, which enhances bandwidth capacity while maintaining low latency performance.

Within high-density networking environments, the need for scalable and efficient connectivity solutions has become critical. The Cisco MA-QSFP-40G-SR4 is optimized for deployment in switches, routers, and network interface cards that support QSFP+ ports, allowing seamless integration into existing infrastructures. Its compact form factor ensures optimal port utilization, enabling network administrators to maximize throughput without increasing physical footprint. The use of multi-mode fiber further reduces overall deployment costs while maintaining high-speed performance across distances typically up to 100 meters on OM3 fiber and up to 150 meters on OM4 fiber.

Understanding QSFP+ Technology in High-Speed Networking

Quad Small Form-Factor Pluggable Plus, commonly known as QSFP+, is a widely adopted interface standard for high-speed data communication applications. The Cisco MA-QSFP-40G-SR4 falls within this category, providing four independent transmit and receive channels, each operating at 10 Gbps to achieve an aggregate data rate of 40 Gbps. This parallel architecture is fundamental to the module’s ability to deliver high bandwidth while maintaining signal integrity and efficiency.

The QSFP+ design supports hot-swappable capabilities, allowing network administrators to install or replace transceivers without powering down network devices. This feature is particularly valuable in mission-critical environments where downtime must be minimized. Additionally, QSFP+ modules incorporate advanced digital diagnostics monitoring (DDM), providing real-time data on parameters such as temperature, voltage, optical power levels, and laser bias current, ensuring proactive network management and maintenance.

Multi-Mode Fiber Compatibility and Advantages

The Cisco MA-QSFP-40G-SR4 transceiver is specifically designed for use with multi-mode fiber cabling, which offers significant advantages in short-range data transmission scenarios. Multi-mode fiber uses a larger core diameter compared to single-mode fiber, allowing multiple light modes to propagate simultaneously. This characteristic simplifies optical alignment and reduces the cost of optical components, making MMF a cost-effective solution for data center environments.

Multi-mode fiber is particularly suitable for intra-data center connections, server-to-switch links, and high-density patching environments. The compatibility of the MA-QSFP-40G-SR4 with OM3 and OM4 fiber standards ensures flexibility in deployment while maintaining high performance. OM4 fiber, in particular, extends the reach of the module, enabling longer transmission distances without signal degradation.

Parallel Optics and MPO Connectivity

The Cisco MA-QSFP-40G-SR4 utilizes MPO (Multi-Fiber Push-On) connectors to facilitate parallel optical transmission. MPO connectors support multiple fiber strands within a single connector interface, typically using 12 fibers arranged in a compact form factor. This configuration allows the transceiver to transmit and receive data across four parallel channels, significantly increasing bandwidth while reducing cable complexity.

Parallel optics technology is essential for achieving 40 Gigabit speeds over multi-mode fiber. By distributing data across multiple lanes, the MA-QSFP-40G-SR4 ensures efficient utilization of available bandwidth while maintaining signal integrity. MPO-based cabling also simplifies cable management, reducing congestion in high-density environments and improving airflow within network racks.

Key Performance Characteristics of Cisco MA-QSFP-40G-SR4

The Cisco MA-QSFP-40G-SR4 transceiver is engineered to deliver exceptional performance across a variety of networking scenarios. Its high-speed data transmission capabilities are complemented by low latency, making it ideal for applications that require rapid data exchange, such as virtualization, cloud computing, and high-performance computing environments. The module’s ability to maintain consistent performance under varying conditions ensures reliability in mission-critical operations.

Another defining characteristic of this category is its adherence to industry standards. The MA-QSFP-40G-SR4 complies with IEEE 802.3ba specifications for 40GBASE-SR4 Ethernet, ensuring interoperability with a wide range of networking equipment. This standards-based approach simplifies deployment and integration, allowing organizations to build scalable and future-proof network infrastructures.

Data Center Optimization and Scalability

Modern data centers demand high levels of scalability to accommodate growing workloads and increasing data traffic. The Cisco MA-QSFP-40G-SR4 plays a crucial role in enabling scalable architectures by providing high-speed connectivity between switches, servers, and storage systems. Its compact QSFP+ form factor allows for high port density, enabling data centers to scale horizontally without requiring additional rack space.

The scalability offered by 40 Gigabit transceivers also supports the transition to higher-speed networks. As organizations move toward 100G and beyond, the MA-QSFP-40G-SR4 serves as a foundational component, facilitating aggregation and uplink connections that bridge different network tiers. This flexibility ensures that investments in 40G infrastructure remain relevant as technology evolves.

Energy Efficiency and Thermal Management

Energy efficiency is a critical consideration in modern networking environments, particularly within large-scale data centers. The Cisco MA-QSFP-40G-SR4 is designed with low power consumption in mind, helping to reduce overall operational costs while minimizing heat generation. Efficient thermal management ensures stable performance and prolongs the lifespan of the transceiver.

The module’s design incorporates advanced heat dissipation mechanisms, allowing it to operate effectively within the thermal constraints of densely populated network equipment. This efficiency contributes to improved reliability and reduces the need for additional cooling infrastructure, further enhancing cost savings.

Reliability and Quality Assurance

Reliability is a cornerstone of the Cisco MA-QSFP-40G-SR4 category. Each transceiver undergoes rigorous testing and quality assurance processes to ensure consistent performance and durability. The use of high-quality optical components and precision manufacturing techniques ensures that the module can withstand demanding operational conditions while maintaining optimal functionality.

The inclusion of digital diagnostics monitoring capabilities provides valuable insights into the health of the transceiver, enabling proactive maintenance and reducing the risk of unexpected failures. This level of visibility is essential for maintaining network uptime and ensuring uninterrupted service delivery.

Applications and Use Cases for 40G QSFP+ SR4 Transceivers

The Cisco MA-QSFP-40G-SR4 is widely used across a range of applications that require high-speed data transmission over short distances. Its versatility and performance make it suitable for deployment in enterprise networks, cloud data centers, and service provider infrastructures. The ability to support high-bandwidth applications ensures that it remains a critical component in modern networking environments.

In data center environments, the MA-QSFP-40G-SR4 is commonly used for spine-leaf architectures, where it facilitates high-speed connections between spine switches and leaf switches. This architecture is essential for achieving low-latency communication and efficient traffic distribution across the network. The module’s compatibility with MPO cabling further enhances its suitability for high-density deployments.

Enterprise Networking and Aggregation Layers

Within enterprise networks, the Cisco MA-QSFP-40G-SR4 is often deployed in aggregation and core layers to support high-speed data transfer between access switches and central network resources. Its ability to handle large volumes of traffic makes it ideal for environments with high user density and bandwidth-intensive applications.

The transceiver also plays a key role in connecting data center resources to enterprise networks, enabling seamless communication between on-premises infrastructure and cloud services. This connectivity is essential for supporting hybrid cloud deployments and ensuring efficient data flow across different environments.

High-Performance Computing and Storage Networks

High-performance computing environments require fast and reliable data transfer to support complex computations and data analysis tasks. The Cisco MA-QSFP-40G-SR4 provides the necessary bandwidth and low latency to meet these requirements, making it an ideal choice for HPC clusters and research institutions.

In storage networks, the transceiver enables high-speed connectivity between storage arrays and servers, ensuring rapid data access and transfer. This capability is particularly important for applications that rely on real-time data processing and high throughput, such as big data analytics and artificial intelligence workloads.

Cloud Infrastructure and Virtualization

Cloud infrastructure relies heavily on high-speed networking to support virtualized environments and distributed workloads. The Cisco MA-QSFP-40G-SR4 facilitates efficient communication between virtual machines, storage systems, and network devices, ensuring optimal performance in cloud deployments.

The transceiver’s ability to handle high data rates and maintain low latency is critical for supporting dynamic workloads and ensuring seamless user experiences. Its compatibility with a wide range of networking equipment further enhances its suitability for cloud environments.