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StarTech.com

StarTech.com Cisco QSFP-40G-SR4 Compatible QSFP+ Transceiver Module - 40GBASE-SR4 - For Data Networking, Optical Network - 1 x LC Duplex 40GBase-SR4 Network - Optical Fiber - Multi-mode - 40 Gigabit Ethernet - 40GBase-SR4 - Hot-pluggable, Hot-swappable -

Category Networking & Wi-Fi Accessories
STCQSFP40GSR4ST STCQSFP40GSR4ST
STCQSFP40GSR4ST STCQSFP40GSR4ST
STCQSFP40GSR4ST STCQSFP40GSR4ST
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StarTech.com

StarTech.com Cisco QSFP-40G-SR4 Compatible QSFP+ Transceiver Module - 40GBASE-SR4 - For Data Networking, Optical Network - 1 x LC Duplex 40GBase-SR4 Network - Optical Fiber - Multi-mode - 40 Gigabit Ethernet - 40GBase-SR4 - Hot-pluggable, Hot-swappable -

Item Code: STCQSFP40GSR4ST
The QSFP40GSR4ST is a Cisco QSFP-40G-SR4 compatible fiber transceiver module that has been designed, programmed and tested to work with Cisco brand switches and routers. It delivers dependable 40 GbE connectivity over fiber cable, for 40GBASE-SR4 compliant networks, with a maximum distance of up to 150 m (492 ft). Technical Specifications: Wavelength: 850nm Maximum Data Transfer Rate: 40 Gbps Type: Multi Mode Fiber Connection Type: MPO Connector Maximum Transfer Distance: 150 m (492 ft) MTBF: 1,649,326 hours Power Consumption: Less than 0.7 Watts Digital Diagnostics Monitoring (DDM): Yes This QSFP+ fiber module is hot-swappable, making upgrades and replacements seamless by minimizing network disruptions. StarTech.com SFPs All StarTech.com SFP & SFP+ transceiver modules are backed by a lifetime warranty and free lifetime multilingual technical support. StarTech.com offers a wide variety of SFP modules and direct-attach SFP cables, providing the convenience and reliability you need to ensure dependable network performance. More from the Manufacturer

More from the Manufacturer
Category Networking & Wi-Fi Accessories
Manufacturer StarTech.com
  • QSFP+ offers better usage with maximum efficiency and convenience
  • With 40GBase-SR4 technology, enjoy up to 40Gbps data transfer rate over optical fiber cable
  • 40 Gigabit Ethernet for efficient data transfer and fast connectivity
  • Supports optical fiber cable for durable performance, minimal signal loss, and fast data transfers to greater distances
  • Typically used for short distance, multi-mode fiber optic is ideal to carry data and transmit audio/video applications within a building

Additional-pdf1

Comparison Data

Date of last check: 07/22/2025
$349.99
The QSFP40GSR4ST is a Cisco QSFP-40G-SR4 compatible fiber transceiver module that has been designed, programmed and tested to work with Cisco brand switches and routers. It delivers dependable 40 GbE connectivity over fiber cable, for 40GBASE-SR4 compliant networks, with a maximum distance of up to 150 m (492 ft). Technical Specifications: Wavelength: 850nm Maximum Data Transfer Rate: 40 Gbps Type: Multi Mode Fiber Connection Type: MPO Connector Maximum Transfer Distance: 150 m (492 ft) MTBF: 1,649,326 hours Power Consumption: Less than 0.7 Watts Digital Diagnostics Monitoring (DDM): Yes This QSFP+ fiber module is hot-swappable, making upgrades and replacements seamless by minimizing network disruptions. StarTech.com SFPs All StarTech.com SFP & SFP+ transceiver modules are backed by a lifetime warranty and free lifetime multilingual technical support. StarTech.com offers a wide variety of SFP modules and direct-attach SFP cables, providing the convenience and reliability you need to ensure dependable network performance. More from the Manufacturer

More from the Manufacturer
Lead Time

Ships in 6-10 Bus Days

UNSPSC Code

43201404

Weight

0.1lb

Height

1.3in

Width

3.7in

Length

4.6in

Catalog Page Number

NEW

Application/usage

Data Networking

Brand

StarTech.com

Brand Name

StarTech.com

Category

Networking & Wi-Fi Accessories

Compatibility

  • MSA Compliant

Cisco Firepower Switches:

  • ASR1000
  • ASR9000
  • C9300
  • C3850

Connector Type

LC

Country of Origin

China

Depth

2.8"

Environmental Compliance

Restriction of Hazardous Substances (RoHS)

Environmentally Friendly

Yes

Ethernet Technology

40 Gigabit Ethernet

Fiber Mode Supported

Multi-mode

Form Factor

Hot-pluggable

Height

0.5"

Interfaces/Ports Details

1 x LC Duplex 40GBase-SR4 Network

Limited Warranty

Lifetime

Manufacturer

StarTech.com

Manufacturer Part Number

QSFP40GSR4ST

Manufacturer Website Address

http://www.startech.com

Media Type Supported

Optical Fiber

Network Technology

40GBase-SR4

Packaged Quantity

1 each

Product Name

Cisco QSFP-40G-SR4 Compatible QSFP+ Transceiver Module - 40GBASE-SR4

Product Type

QSFP+

Total Number of Ports

1

Weight (approximate)

0.07 lb

Width

0.7"

Comparison Data

Date of last check: 07/22/2025
$349.99
The QSFP40GSR4ST is a Cisco QSFP-40G-SR4 compatible fiber transceiver module that has been designed, programmed and tested to work with Cisco brand switches and routers. It delivers dependable 40 GbE connectivity over fiber cable, for 40GBASE-SR4 compliant networks, with a maximum distance of up to 150 m (492 ft). Technical Specifications: Wavelength: 850nm Maximum Data Transfer Rate: 40 Gbps Type: Multi Mode Fiber Connection Type: MPO Connector Maximum Transfer Distance: 150 m (492 ft) MTBF: 1,649,326 hours Power Consumption: Less than 0.7 Watts Digital Diagnostics Monitoring (DDM): Yes This QSFP+ fiber module is hot-swappable, making upgrades and replacements seamless by minimizing network disruptions. StarTech.com SFPs All StarTech.com SFP & SFP+ transceiver modules are backed by a lifetime warranty and free lifetime multilingual technical support. StarTech.com offers a wide variety of SFP modules and direct-attach SFP cables, providing the convenience and reliability you need to ensure dependable network performance. More from the Manufacturer

More from the Manufacturer
Lead Time

Ships in 6-10 Bus Days

UNSPSC Code

43201404

Weight

0.1lb

Height

1.3in

Width

3.7in

Length

4.6in

Catalog Page Number

NEW

Application/usage

Data Networking

Brand

StarTech.com

Brand Name

StarTech.com

Category

Networking & Wi-Fi Accessories

Compatibility

  • MSA Compliant

Cisco Firepower Switches:

  • ASR1000
  • ASR9000
  • C9300
  • C3850

Connector Type

LC

Country of Origin

China

Depth

2.8"

Environmental Compliance

Restriction of Hazardous Substances (RoHS)

Environmentally Friendly

Yes

Ethernet Technology

40 Gigabit Ethernet

Fiber Mode Supported

Multi-mode

Form Factor

Hot-pluggable

Height

0.5"

Interfaces/Ports Details

1 x LC Duplex 40GBase-SR4 Network

Limited Warranty

Lifetime

Manufacturer

StarTech.com

Manufacturer Part Number

QSFP40GSR4ST

Manufacturer Website Address

http://www.startech.com

Media Type Supported

Optical Fiber

Network Technology

40GBase-SR4

Packaged Quantity

1 each

Product Name

Cisco QSFP-40G-SR4 Compatible QSFP+ Transceiver Module - 40GBASE-SR4

Product Type

QSFP+

Total Number of Ports

1

Weight (approximate)

0.07 lb

Width

0.7"

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