StarTech. com QSFP40SR4ST MSA Compliant QSFP+ Transceiver - 40GBASE-SR4 40GbE Multi-Mode Fiber MPO 100m
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Product Features
Technical Overview
This QSFP+ transceiver operates at 40 Gbps over multi-mode fiber using 850nm wavelength optics, supporting transmission distances up to 100 meters (328 feet). The MPO duplex connector ensures secure fiber alignment for stable optical performance in data center and enterprise network applications. The module is fully compliant with MSA (Multi-Source Agreement) standards, guaranteeing interoperability with a wide range of networking equipment that accepts uncoded QSFP+ modules.
Environmental compliance includes adherence to WEEE, RoHS, and REACH directives, reflecting a commitment to sustainable manufacturing practices. The transceiver is manufactured in China and undergoes rigorous testing to ensure reliability in optical network and data networking deployments. Its small physical footprint—measuring 0.50" x 0.70" x 2.80" and weighing 1.20 oz—makes it ideal for high-density switch configurations.
Key Product Advantages
The StarTech.com QSFP40SR4ST transceiver offers several distinct advantages for network administrators seeking reliable 40GbE fiber connectivity. Its uncoded MSA compliance ensures broad compatibility without vendor lock-in, while the lifetime warranty provides long-term peace of mind backed by 24/5 technical support. The inclusion of Digital Diagnostic Monitoring allows for detailed performance tracking and fault detection, reducing troubleshooting time and improving network uptime.
Broad Compatibility
Works with MSA-compliant switches and routers from multiple vendors, offering flexibility in network design and expansion.
- Ubiquiti
- D-Link
- Netgear
- Supermicro
- TP-Link
Reliable Performance
Delivers consistent 40 Gbps throughput over multi-mode fiber with stable optical signal integrity up to 100 meters.
Easy Integration
Hot-swappable design enables quick installation and replacement without disrupting network operations.
Deployment / Use Cases
This transceiver is ideal for upgrading existing network infrastructure to 40GbE speeds in data centers, enterprise backbones, and high-performance computing environments. It connects switches, routers, and servers over multi-mode fiber, supporting applications that require high bandwidth for virtualization, storage area networks (SAN), and data replication.
Common deployment scenarios include linking top-of-rack switches to aggregation layers, connecting blade server chassis, and extending 40GbE links within server rooms. The 100-meter distance capability makes it suitable for intra-building connections, while the MPO connector supports parallel optics configurations for efficient fiber utilization. Network administrators can deploy these modules in redundant setups to ensure high availability and scalability.
Data Center Interconnects
Connect leaf-spine architectures or aggregate server traffic with reliable 40GbE fiber links.
Network Upgrades
Migrate from 10GbE to 40GbE without replacing entire switch chassis, using existing multi-mode fiber infrastructure.
Physical Profile
The transceiver features a compact, hot-swappable form factor with dimensions of 0.50" height, 0.70" width, and 2.80" depth, designed to fit standard QSFP+ ports on networking equipment. Its lightweight construction at 1.20 oz minimizes load on switch panels, while the robust housing ensures durability in operational environments. The MPO connector provides a secure, latching connection that prevents accidental disconnection in high-vibration settings.
- Width
- 0.70" (17.78 mm)
- Depth
- 2.80" (71.12 mm)
- Height
- 0.50" (12.70 mm)
- Weight
- 1.20 oz (34.02 g)
Highlights
- 40GBASE-SR4 QSFP+ transceiver for 40GbE multi-mode fiber networks
- MPO connector supports parallel optics up to 100 meters distance
- 100% MSA uncoded design for broad switch and router compatibility
- Hot-swappable form factor enables easy installation and maintenance
- Digital Diagnostic Monitoring (DDM) for real-time performance tracking
- Lifetime warranty with 24/5 technical support coverage
- Works with Ubiquiti, D-Link, Netgear, Supermicro, TP-Link switches
- Environmentally compliant with RoHS, WEEE, and REACH standards
- Compact dimensions: 0.50" x 0.70" x 2.80", weight 1.20 oz
- 850nm wavelength optics for reliable multi-mode fiber transmission
Specifications
| Specifications | |
|---|---|
| Manufacturer | StarTech.com |
| Manufacturer Part Number | QSFP40SR4ST |
| Brand Name | StarTech.com |
| Product Name | MSA Compliant QSFP+ Transceiver Module - 40GBASE-SR4 |
| Product Type | QSFP+ |
| Packaged Quantity | 1 Each |
| Technical Information | |
| Application/Usage | Optical Network,Data Networking |
| Interfaces/Ports | |
| Total Number of Ports | 1 |
| Connector Type | MPO |
| Interfaces/Ports Details | 1 x MPO Duplex 40GBase-SR4 Network |
| Media & Performance | |
| Media Type Supported | Optical Fiber |
| Fiber Mode Supported | Multi-mode |
| Ethernet Technology | 40 Gigabit Ethernet |
| Network Technology | 40GBase-SR4 |
| Physical Characteristics | |
| Form Factor | Hot-swappable |
| Height | 0.50" (12.70 mm) |
| Width | 0.70" (17.78 mm) |
| Depth | 2.80" (71.12 mm) |
| Weight (Approximate) | 1.20 oz (34.02 g) |
| Miscellaneous | |
| Compatibility | MSA Compliant |
| Country of Origin | China |
| Environmentally Friendly | Yes |
| Environmental Compliance | Waste Electrical and Electronic Equipment Directive (WEEE),Restriction of Hazardous Substances (RoHS),Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) |
| Warranty | |
| Limited Warranty | Lifetime |
User Manual
FAQ
What is the maximum distance this QSFP+ transceiver supports?
This transceiver supports transmission distances up to 100 meters (328 feet) over multi-mode fiber when used with the 40GBASE-SR4 standard. The distance is optimized for 850nm wavelength optics and assumes proper fiber quality and connector alignment. This range is suitable for most intra-building connections in data centers and enterprise networks.
Which connector type does this transceiver use?
The transceiver uses an MPO (Multi-fiber Push-On) duplex connector. This connector type supports parallel optics for 40GbE transmission over multi-mode fiber, providing a secure, latching connection that ensures proper fiber alignment. MPO connectors are commonly used in high-density optical networking environments.
Is this transceiver compatible with my existing switches?
This transceiver is 100% MSA uncoded and compatible with MSA-compliant switches and routers that accept uncoded QSFP+ modules. It has been tested with equipment from manufacturers including Ubiquiti, D-Link, Netgear, Supermicro, and TP-Link. The uncoded design ensures it won't void OEM warranties while providing interoperability across multiple vendor platforms.
What is Digital Diagnostic Monitoring (DDM) and how does it work?
Digital Diagnostic Monitoring (DDM) is a feature that reports real-time performance parameters of the transceiver to SNMP network management tools. It monitors temperature, voltage, optical output power, received optical power, and laser bias current. This allows network administrators to track transceiver health, detect potential issues early, and troubleshoot connectivity problems without physical inspection.
Can I hot-swap this transceiver while the network is running?
Yes, this transceiver features a hot-swappable form factor, allowing you to install or replace it without powering down the networking equipment. This capability minimizes network downtime during maintenance or upgrades. Always follow proper electrostatic discharge (ESD) precautions when handling optical transceivers to prevent damage.
What warranty coverage does this transceiver include?
The transceiver is backed by a lifetime warranty that covers the module itself for its operational life, independent of your switch's warranty period. This warranty includes support from StarTech.com's technical advisors available 24/5. The warranty ensures long-term reliability and protects your investment in network infrastructure.
| Qty | Price | Available |
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