QSFP40GSR4ST StarTech.com Cisco QSFP-40G-SR4 Compatible QSFP+ Transceiver Module - 40GBASE-SR4~Cisco QSFP-40G-SR4 Compatible QSFP+ Module - 40GBASE-SR4 - 40GbE Multimode Fiber MMF Optic Transceiver - 40GE Gigabit Ethernet QSFP+ - MPO 150m - 850nm - DDM Ci
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Cisco QSFP-40G-SR4 Compatible QSFP+ Transceiver Module - 40GBASE-SR4~Cisco QSFP-40G-SR4 Compatible QSFP+ Module - 40GBASE-SR4 - 40GbE Multimode Fiber MMF Optic Transceiver - 40GE Gigabit Ethernet QSFP+ - MPO 150m - 850nm - DDM Cisco Firepower, ASR1000, AS
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QSFP40GSR4ST Overview
STARTECH 40 Gigabit Fiber 40gbase-sr4 Qsfp+ Transceiver Module - Cisco Qsfp-40g-sr4 Compatible - Mm Mpo - 150 M (492 Ft) - Qsfp+ Transceiver Module - 40 Gigabit ETHERNET(QSFP40GSR4ST)
StarTech.com Cisco QSFP-40G-SR4 Compatible QSFP+ Module 40GBASE-SR4 - 40GbE Multimode Fiber MMF Optic Transceiver - 40GE Gigabit Ethernet MPO 150m - 850nm - DDM Cisco Firepower, ASR1000 (QSFP40GSR4ST)
- 100% CISCO QSFP-40G-SR4 COMPATIBLE: Works with Cisco switches like Firepower, ASR1000, ASR9000, C9300, C3850 and others
- TECHNICAL SPECS: 40GBASE-SR4 / 40 Gbps / Multi Mode (MMF) / MPO Connector / 850nm / Digital Diagnostic Monitoring (DDM) / Distances up to 150m (492ft)
- TESTED FOR OEM HOST COMPATIBILITY: Hot-swappable in Cisco routers and switches; DDM support reports the transceiver's status to most SNMP network management tools
- WORKS WITH MSA COMPLIANT SWITCHES: Also 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-swap
- Power consumption (typical): 0.7 W
Summary Description
StarTech.com Cisco QSFP-40G-SR4 Compatible QSFP+ Transceiver Module - 40GBASE-SR4~Cisco QSFP-40G-SR4 Compatible QSFP+ Module - 40GBASE-SR4 - 40GbE Multimode Fiber MMF Optic Transceiver - 40GE Gigabit Ethernet QSFP+ - MPO 150m - 850nm - DDM Cisco Firepower, ASR1000, ASR9000. 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): 1649326 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: 92 mm, Package depth: 117 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-swap | Yes |
| Mean time between failures (MTBF) | 1649326 h |
| Country of origin | China |
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 | 32 g |
Packaging data
| Number of products included | 1 pc(s) |
|---|---|
| Package width | 92 mm |
| Package depth | 117 mm |
| Package height | 34 mm |
| Package weight | 95 g |
Technical details
| Sustainability certificates | CE, RoHS |
|---|
Logistics data
| Master (outer) case width | 250 mm |
|---|---|
| Master (outer) case length | 300 mm |
| Harmonized System (HS) code | 85369010 |
| Master (outer) case height | 200 mm |
| Products per master (outer) case | 36 pc(s) |
Resources
Documents
Frequently Asked Questions
Is the QSFP40GSR4ST transceiver fully compatible with my existing Cisco ASR 1000 series routers? +
Yes, this StarTech.com module is programmed and tested to perform identically to the original Cisco QSFP-40G-SR4 transceiver. It is specifically engineered to ensure seamless integration with Cisco hardware, including the ASR 1000 series, Firepower appliances, and other platforms that support the QSFP+ standard, providing reliable 40GbE connectivity across your enterprise network.
What is the maximum effective transmission distance for this 40GBASE-SR4 module? +
This module is optimized for high-speed data transmission over multimode fiber. When using OM3 cabling, it supports reach up to 100 meters, and up to 150 meters when using OM4 cabling. It utilizes an 850nm wavelength, making it an ideal solution for short-reach interconnects within data centers or high-density server room environments.
Does this transceiver support Digital Diagnostics Monitoring (DDM)? +
Absolutely. The QSFP40GSR4ST supports Digital Diagnostics Monitoring, allowing network administrators to monitor real-time parameters such as optical output power, input power, temperature, and transceiver supply voltage. This feature is critical for proactive maintenance, enabling you to identify potential link issues or degradation before they result in actual network downtime.
What type of fiber optic connector is required for this QSFP+ module? +
This transceiver utilizes an MPO (Multi-fiber Push-On) connector interface. To maintain signal integrity, ensure you are using a corresponding MPO-style multimode fiber patch cable. This interface is the industry standard for 40GbE SR4 applications, allowing for the parallel transmission of data over multiple fiber strands to achieve the full 40Gbps throughput.
Can I use this module in a mixed-vendor network environment? +
While specifically coded for Cisco compatibility, this module adheres to the MSA (Multi-Source Agreement) standards for physical and electrical specifications. This means it follows the universal QSFP+ form factor requirements, allowing it to function reliably within your infrastructure provided the host device port is configured to support the standard QSFP-40G-SR4 transceiver specifications.
How does this StarTech.com module compare to original Cisco-branded optics in terms of performance? +
You can expect identical performance metrics, including data throughput and latency. This module meets or exceeds the specifications of the Cisco-branded equivalent. By choosing this solution, you obtain the exact 40GbE connectivity required for your high-performance networking tasks while maintaining the rigorous operational standards demanded by enterprise-grade hardware environments.
What specific network speeds and standards does this transceiver support? +
The QSFP40GSR4ST is designed to support 40 Gigabit Ethernet (40GbE) standards. It strictly follows the 40GBASE-SR4 protocol, which utilizes parallel optics to achieve its 40Gbps speed. It is intended for high-bandwidth data center backbone connections, server-to-switch links, or interconnecting high-density switches within your networking rack.
Does the installation of this third-party module impact my Cisco hardware configuration settings? +
In most cases, the transceiver is plug-and-play. However, some Cisco devices may require the 'service unsupported-transceiver' command if the system detects a non-Cisco-branded serial number. Aside from this minor configuration adjustment, the module behaves exactly like the OEM optic, and it will be recognized and managed by your Cisco IOS or NX-OS software without requiring proprietary drivers.
Can BuyRouterSwitch.com provide a bulk price quote for large-scale infrastructure deployments? +
Yes, we specialize in supporting large-scale enterprise rollouts. If you are planning a data center refresh or need to provision multiple switches, please reach out to our sales team directly. We are happy to provide customized bulk pricing quotes to ensure your project remains within budget while meeting your specific technical requirements.
Why should I choose BuyRouterSwitch.com for my networking transceiver needs? +
BuyRouterSwitch.com is a trusted source for high-quality, authentic networking hardware. We focus on providing seamless procurement experiences for IT professionals, offering streamlined ordering and expert guidance. By choosing us, you gain access to a reliable supply chain, ensuring that your enterprise switches and transceivers are sourced correctly and delivered efficiently for your critical network deployments.
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