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Trevor Simmons
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Reliable 40G performance over multimode fiber.
QSFP-40G-SR4=
40GBASE-SR4 QSFP TRANSCEIVER MODULE WITH MPO CONNECTOR
FEATURED DEAL
Name:
QSFP-40G-SR4=
- Description:
- 40GBASE-SR4 QSFP TRANSCEIVER MODULE WITH MPO CONNECTOR
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 662147352260
- Condition:
- Warranty:
- 3
- List Price:
$3,534.00
- Price:
$167.0095.3% off
Quantity:
1
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QSFP-40G-SR4= Overview
The QSFP-40G-SR4= is a high-performance Cisco QSFP+ transceiver designed to deliver reliable 40-Gigabit Ethernet connectivity over short-range multimode fiber. This Cisco QSFP-40G-SR4= module supports 40GBASE-SR4 applications, enabling seamless deployment across enterprise networks, data center fabrics, 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 aggregation and uplink connections.
Engineered for consistent signal integrity and broad compatibility across Cisco platforms, the QSFP 40G SR4= module provides low-latency data transmission, high throughput, and simple plug-and-play installation. Its hot-swappable design enables rapid installation or replacement without downtime, offering an efficient and cost-effective solution for organizations scaling their high-performance 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 high-bandwidth 40-Gigabit Ethernet links in enterprise and data center networks.
Hot-Swappable Design
Allows modules to be installed or replaced without service interruption.
Low-Latency Optical Transmission
Delivers stable, high-throughput connectivity for demanding workloads.
Multimode Fiber Support
Offers flexible deployment across diverse multimode cabling infrastructures.
Supported Hardware Models
The QSFP-40G-SR4= module is compatible with major Cisco switching 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 wide compatibility ensures seamless integration across enterprise, cloud, and high-density data center environments.
Why Choose the QSFP-40G-SR4=
- Ideal for short-range 40G multimode fiber connectivity
- Compatible with Cisco Catalyst and Cisco Nexus platforms
- Delivers stable, high-performance 40G optical transmission
- Supports plug-and-play deployment for simplified scaling
- A cost-efficient solution for expanding 40G data center capacity
QSFP-40G-SR4= price is $167.00, a 95.3% saving from the Cisco list price of $3,534.00. QSFP-40G-SR4= is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for QSFP-40G-SR4= for additional pricing. Browse the full 40G Base Modules series or explore all Cisco products.
QSFP-40G-SR4= Specifications
- Product Type
- Transceiver
- Form Factor
- QSFP
- Data Rate
- 40G
- Connector Type
- MPO
- Wavelength
- 850nm
- Transmission Distance
- Short-Range
- Fiber Type
- Multi-mode
- Max Distance
- 100 meters (OM3) / 150 meters (OM4)
- Supported Protocols
- Ethernet
- Network Interface
- Fiber
- Power Consumption
- ≤ 4W
- 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=
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
QSFP-40G-SR4= Use Case
Hyperscale Data Center Spine-Leaf 40G Connectivity
In hyperscale data centers, the QSFP-40G-SR4=-40GBASE-SR4 QSFP Transceiver Module with MPO Connector delivers 40Gbps multi-mode fiber links up to 100 m between spine and leaf switches. This deployment reduces cabling complexity and oversubscription ratios, enabling real-time east-west traffic. Key Benefits: - Scalable, uniform MPO fiber management - Ultra-low latency (<2 µs) for high-throughput applications - Hot-pluggable 40GBASE-SR4 upgrade path
High-Performance Computing Cluster Interconnect
In HPC environments, the QSFP-40G-SR4=-40GBASE-SR4 QSFP Transceiver Module with MPO Connector establishes low-latency, high-bandwidth links between compute nodes over multi-mode fiber. This configuration maximizes MPI performance for large-scale simulations and AI training jobs. Key Benefits: - Sustained 40Gbps throughput for parallel workloads - Consistent latency and jitter for synchronized processing - Simplified rack-to-rack cabling with MPO trunks
Enterprise Campus Backbone Upgrade to 40G
Enterprises migrating from 10G to 40G campus backbones deploy the QSFP-40G-SR4=-40GBASE-SR4 QSFP Transceiver Module with MPO Connector to quadruple capacity over existing multi-mode fiber. The plug-and-play design cuts deployment time and operational costs. Key Benefits: - 4× bandwidth increase without fiber re-pull - Consistent MPO connector standardization - Future-proof architecture for 5G, IoT, and SD-WAN services
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 QSFP-40G-SR4= |  QSFP-H40G-AOC3M |  QSFP-4X10G-AOC1M |  QSFP-H40G-CU5M= |  QSFP-4SFP10G-CU4M= | |
|---|---|---|---|---|---|
| Compatibility | Cisco, Juniper, Huawei, Arista | N/A | Cisco / Juniper / Huawei / Arista | N/A | Cisco / Juniper / Huawei / Arista |
| Connector Type | MPO | N/A | MPO | QSFP | QSFP+ and SFP+ |
| Data Rate | 40G | 40G | 40G | 40G | 10G |
| Depth | N/A | N/A | N/A | N/A | N/A |
| Fiber Type | Multi-mode | Multi-mode | Multi-mode | N/A | N/A |
| Form Factor | QSFP | QSFP | QSFP | QSFP | QSFP+ to 4x SFP+ |
| Height | N/A | N/A | N/A | N/A | N/A |
| Input Voltage | 3.3V | 3.3V | 3.3V | N/A | N/A |
| Max Distance | 100 meters (OM3) / 150 meters (OM4) | 3 m | 1 meter | 5m | 4 meters |
| Network Interface | Fiber | Ethernet | Ethernet | Ethernet | Copper |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | ≤ 4W | N/A | N/A | N/A | N/A |
| Product Name | QSFP-40G-SR4= | QSFP-H40G-AOC3M | QSFP-4X10G-AOC1M | QSFP-H40G-CU5M= | QSFP-4SFP10G-CU4M= |
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Direct Attach Copper Cable (DAC) |
| 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 | Short-Range | Short-Range |
| Wavelength | 850nm | 850 nm | 850nm | N/A | N/A |
| Weight | N/A | N/A | N/A | N/A | N/A |
| Width | N/A | N/A | N/A | N/A | N/A |
Reviews & Ratings
K
Kevin Patel
4
Stable optics for data center aggregation.
B
Brian Wilson
5
Easy installation with consistent throughput.
J
Jason Reed
3
Works well with MPO cabling.
M
Mark Johnson
4
Dependable choice for 40G links.
Questions & Answers
What is the QSFP-40G-SR4=?
The QSFP-40G-SR4= is a 40GBASE-SR4 quad small form-factor pluggable transceiver module with an MPO connector for short-range multimode fiber applications.
Which fiber type does QSFP-40G-SR4= require?
It requires OM3 or OM4 multimode fiber terminated with an MPO connector to support 40 Gbps transmission.
What is the maximum reach of QSFP-40G-SR4=?
It supports up to 100 meters over OM3 and up to 150 meters over OM4 multimode fiber.
What wavelength does the module operate at?
It operates at a typical wavelength of 850 nm for 40GBASE-SR4 optical transmission.