QSFP40SR4ST StarTech.com MSA Compliant QSFP+ Transceiver Module - 40GBASE-SR4~MSA Uncoded QSFP+ Module - 40GBASE-SR4 - 40GbE Multi Mode Fiber (MMF) Optic Transceiver - 40GE Gigabit Ethernet QSFP+ - MPO 100m - 850nm - DDM
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MSA Compliant QSFP+ Transceiver Module - 40GBASE-SR4~MSA Uncoded QSFP+ Module - 40GBASE-SR4 - 40GbE Multi Mode Fiber (MMF) Optic Transceiver - 40GE Gigabit Ethernet QSFP+ - MPO 100m - 850nm - DDM
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QSFP40SR4ST Overview
STARTECH Msa Compliant 40 Gigabit Fiber Qsfp+ Transceiver Module - 40gbase-sr4 - Mm Mpo - 150 M - Qsfp+ Transceiver Module - 40 Gigabit ETHERNET(QSFP40SR4ST)
StarTech.com MSA Uncoded Compatible QSFP+ Module - 40GBASE-SR4 - 40GbE Multi Mode Fiber (MMF) Optic Transceiver - 40GE Gigabit Ethernet QSFP+ - MPO 100m - 850nm - DDM (QSFP40SR4ST)
- 100% MSA UNCODED QSFP+ TRANSCEIVER: Designed, programmed and tested to work with compatible MSA Compliant switches and routers to deliver reliable 40GbE connectivity
- TECHNICAL SPECS: 40GBASE-SR4 / 40Gbps / Multi Mode (MMF) / MPO Connector / 850nm / Digital Diagnostic Monitoring (DDM) / Distances up to 100m (328ft)
- TESTED FOR COMPATIBILITY: Hot-swappable in MSA Compliant routers and switches; DDM support reports the transceiver's status to most SNMP network management tools.
- WORKS WITH MSA COMPLIANT SWITCHES: Works with switch models from Ubiquiti, D-Link, Netgear, Supermicro, TP-Link and more that accept uncoded modules
- THE IT PRO’S CHOICE: Designed and built for IT Professionals, this SFP module is backed for life (lifetime of module, not network switch), including free lifetime 24/5 multi-lingual technical assistance
- QSFP+ Fiber optic 40000 Mbit/s
- Wavelength: 850 nm
- Hot-Plug support
- Power consumption (typical): 0.7 W
Summary Description
StarTech.com MSA Compliant QSFP+ Transceiver Module - 40GBASE-SR4~MSA Uncoded QSFP+ Module - 40GBASE-SR4 - 40GbE Multi Mode Fiber (MMF) Optic Transceiver - 40GE Gigabit Ethernet QSFP+ - MPO 100m - 850nm - DDM. SFP transceiver type: Fiber optic, Maximum data transfer rate: 40000 Mbit/s, Interface type: QSFP+. Product colour: Silver, Housing material: Aluminium, Mean time between failures (MTBF): 1489426 h. Power consumption (typical): 0.7 W. Width: 18.4 mm, Depth: 72 mm, Height: 13 mm. Number of products included: 1 pc(s), Package width: 90 mm, Package depth: 120 mm
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Specifications
Overview
| Condition | New |
|---|---|
| Brand | StarTech.com |
| Stock | In Stock |
Performance
| SFP transceiver type | Fiber optic |
|---|---|
| Maximum data transfer rate | 40000 Mbit/s |
| Interface type | QSFP+ |
| Multi-mode fiber (MMF) supported | Yes |
| Fiber optic connector | MPO |
| SFP transceiver standard | SR4 |
| Maximum transfer distance | 150 m |
| Wavelength | 850 nm |
| Networking standards | IEEE 802.3ba |
| Duplex system | Full |
| Digital Diagnostics Monitoring (DDM) | Yes |
Features
| Product colour | Silver |
|---|---|
| Housing material | Aluminium |
| Hot-Plug support | Yes |
| Mean time between failures (MTBF) | 1489426 h |
| Certification | CE, FCC, UR |
Power
| Power consumption (typical) | 0.7 W |
|---|
Operational conditions
| Operating temperature (T-T) | 0 - 70 °C |
|---|---|
| Storage temperature (T-T) | -40 - 85 °C |
| Operating relative humidity (H-H) | 5 - 95% |
Weight & dimensions
| Width | 18.4 mm |
|---|---|
| Depth | 72 mm |
| Height | 13 mm |
| Weight | 34 g |
Packaging data
| Number of products included | 1 pc(s) |
|---|---|
| Package width | 90 mm |
| Package depth | 120 mm |
| Package height | 30 mm |
| Package weight | 62 g |
Technical details
| Sustainability certificates | RoHS |
|---|
Logistics data
| Master (outer) case width | 270 mm |
|---|---|
| Master (outer) case length | 340 mm |
| Harmonized System (HS) code | 85369010 |
| Master (outer) case height | 330 mm |
| Products per master (outer) case | 60 pc(s) |
Resources
Documents
Frequently Asked Questions (FAQs)
What is the maximum effective transmission distance for the QSFP40SR4ST module? +
This 40GBASE-SR4 transceiver is designed for short-range high-speed data transmission. When using OM3 multi-mode fiber, it supports a maximum distance of 100 meters, while OM4 multi-mode fiber extends that reach up to 150 meters. It is an ideal solution for data center inter-rack connections and high-density switch-to-switch links.
Is the QSFP40SR4ST compatible with non-StarTech networking equipment? +
Yes, this is an MSA (Multi-Source Agreement) compliant transceiver. Because it is uncoded, it is designed to work seamlessly with any networking equipment that adheres to standard MSA protocols. This flexibility allows you to integrate the module into a wide variety of switches and routers without proprietary software lock-ins.
What type of optical interface does the QSFP40SR4ST require? +
The module features an MPO (Multi-fiber Push-On) connector interface. To ensure optimal performance and reliable data throughput, you must use a standard MPO/MTP patch cable. This interface supports the parallel transmission of data over four lanes, which is the standard method for achieving 40GbE speeds via multi-mode fiber optics.
Does this transceiver support Digital Diagnostic Monitoring (DDM)? +
Yes, the QSFP40SR4ST includes built-in Digital Diagnostic Monitoring (DDM) capabilities. This feature allows network administrators to monitor real-time parameters such as optical output power, input power, laser bias current, and transceiver temperature. These insights are vital for proactive troubleshooting and ensuring the ongoing health of your fiber optic link.
What wavelengths does the QSFP40SR4ST module operate on? +
This module operates at a nominal wavelength of 850nm. This is the industry-standard wavelength for short-reach multi-mode fiber applications. Utilizing this wavelength ensures broad compatibility with standard 850nm VCSEL-based fiber optic hardware commonly deployed in enterprise and data center environments.
What are the common deployment scenarios for this 40GBASE-SR4 module? +
The QSFP40SR4ST is best utilized in high-density data center environments, specifically for interconnecting leaf-and-spine switches or linking core network devices. It is the preferred choice for administrators looking to scale their throughput to 40Gbps while maintaining cost-effectiveness over short-run fiber cabling within the same rack or adjacent cabinets.
Can I use this transceiver in a port configured for 4x10GbE breakout? +
The 40GBASE-SR4 standard is natively designed to handle parallel 40Gbps throughput. While the hardware physical layer supports the 4x10Gbps parallel lanes, the specific breakout functionality depends entirely on the capabilities and configuration of your host switch or router. Ensure your switch hardware supports QSFP+ breakout modes before deployment.
How does the power consumption of this module compare to standard transceivers? +
This StarTech.com module is engineered for power efficiency, adhering to the standard power consumption profiles defined by the MSA for QSFP+ transceivers. By maintaining a low power footprint, it helps reduce the thermal load on your networking hardware and lowers overall operational costs in high-density rack deployments.
How can I obtain a bulk quote for large quantities of the QSFP40SR4ST? +
For large volume orders or recurring infrastructure projects, BuyRouterSwitch.com offers streamlined procurement assistance. Simply contact our sales team directly through our website with your specific quantity requirements. We are equipped to handle high-volume procurement requests efficiently, ensuring you receive competitive pricing and prioritized service for your enterprise networking hardware needs.
Why should I purchase my StarTech transceivers from BuyRouterSwitch.com? +
BuyRouterSwitch.com is a trusted source for high-quality enterprise networking components. We prioritize providing our customers with authentic, reliable hardware that meets strict industry standards. By choosing us, you benefit from a dedicated procurement process, secure ordering workflows, and expert support that ensures your equipment is ready for deployment exactly when your network infrastructure demands it.
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