StarTech.com
StarTech.com QSFP-40G-SR4-S-ST network transceiver module
Best high-speed connectivity solution for IT professionals managing Cisco network environments.
Elevate your network's performance with the StarTech.com QSFP40GSR4ST transceiver module. Engineered for IT professionals, this module ensures robust 40 Gbps connectivity, particularly within Cisco environments. It offers seamless integration with major Cisco hardware, delivering reliable data transfer over multi-mode fiber. Key specifications include 40GBASE-SR4 support, an 850nm wavelength, an MPO connector, and a transmission range of up to 150 meters. Its hot-swappable design allows for effortless upgrades without interrupting network operations. Backed by a lifetime warranty, this module provides peace of mind and dependable performance.
$187.78
Owner Satisfaction
4.6
/ 5
Category Rank
281
/ 2596
#281 in Repeaters & Transceivers
Price vs Category Average
-81%
Below average
Data Rate
40000
/ Mbit/s
Who it's for
- Budget-conscious IT managers optimizing network infrastructure costs
- Network administrators requiring seamless integration with existing Cisco hardware
- System architects prioritizing long-term reliability and vendor support
Who should skip it
- Enterprise teams requiring full support coverage from original equipment manufacturers
- Network engineers needing granular real-time diagnostic and monitoring data
- Skeptical professionals preferring original manufacturer optics for mission-critical deployments
Performance breakdown
Cisco Compatibility
Engineered for seamless integration within demanding Cisco network environments.
Data Throughput
Delivers consistent 40 Gbps speeds for high-bandwidth enterprise applications.
Installation Efficiency
Hot-swappable design allows for rapid upgrades without network downtime.
Transmission Range
Reliable signal integrity across multi-mode fiber up to 150 meters.
Build Reliability
Robust construction backed by a comprehensive lifetime warranty for peace of mind.
Connector Standard
Industry-standard MPO interface ensures broad compatibility with existing fiber infrastructure.
Key Specs
Data Rate
40000 Mbit/s
Supported Protocol
40GBASE-SR4
Connector Type
MPO connector
Maximum Range
Up to 150m (492ft)
Wavelength
850nm
Compatibility
100% Cisco QSFP-40G-SR4 compatible
Device Type
QSFP+ transceiver module
Connectivity Technology
Ethernet
Features
- High-speed 40 Gbps data transfer
- Cisco QSFP-40G-SR4 compatible
- Reliable multi-mode fiber operation
- Hot-swappable for easy upgrades
- Supports up to 150m range
- Lifetime warranty included
- Designed for Cisco networking hardware
What customers say
Customers overwhelmingly praise this transceiver module for its exceptional value and seamless integration. Professionals highlight its cost effectiveness as a reliable alternative to expensive OEM optics, delivering substantial financial benefits for scaling infrastructure. The module is consistently recognized for its plug and play compatibility, instantly working with Cisco and other networking equipment without complex configuration. Users report stable performance and consistent throughput, noting it functions identically to much pricier branded solutions. The core strength lies in this dependable, high quality performance that eliminates the OEM tax, making it a highly recommended component for efficient 40 Gigabit Ethernet deployment.
Know before you buy
Yes, this transceiver is 100% compatible with Cisco QSFP-40G-SR4 requirements. It is specifically engineered to integrate seamlessly into Cisco networking environments without compatibility errors.
This module is designed for use with multi-mode fiber optic cables. It utilizes an MPO connector interface to support high-speed 40 Gbps data transmission.
Yes, the module features a hot-swappable design. This allows you to install or replace the transceiver without powering down your equipment or interrupting network operations.
This module supports a maximum transmission range of up to 150 meters (492 feet) over multi-mode fiber, making it ideal for data center or server room connectivity.
No, it is designed as a plug-and-play solution. It should be recognized by your Cisco hardware immediately upon insertion without the need for additional firmware or complex configuration.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$188