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Cisco QSFP-40G-CSR-S Compatible 40GBASE-SWDM4 QSFP+ 850nm 300m DOM LC MMF Optical Transceiver Module
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Cisco QSFP-40G-CSR-S Compatible 40GBASE-SWDM4 QSFP+ 850nm 300m DOM LC MMF Optical Transceiver Module

#135552

£231.00

FS P/N: QSFP-SWDM4-40G

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FREE UK Delivery via FedEx International Economy® 4-6 Business Days, ship on Wed. 10th Nov.

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Cisco QSFP-40G-CSR-S Compatible 40GBASE-SWDM4 QSFP+ Optical Transceiver Module for 40Gbase Ethernet and Data Center (MMF, 850nm, 300m, LC, DOM)

The Cisco QSFP-40G-CSR-S Compatible 40GBASE-SWDM4 QSFP+ transceiver modules are designed for use in 40 Gigabit Ethernet links over duplex multimode fiber (MMF). They are compliant with the QSFP+ MSA and IEEE 802.3ba XLPPI electrical interface. Digital diagnostics functions are available via an I2C interface, as specified by the QSFP+ MSA, to allow access to real-time operating parameters.

The optical transceiver is RoHS compliant as described in Application Note AN-2038. With these features, this easy to install, hot swappable transceiver is suitable to be used in various applications, such as 40G Ethernet and Enterprise Data Center.
Product Specifications
Cisco Compatible QSFP-40G-CSR-SVendor Name FS
Form Factor QSFP+ Max Data Rate 41.2Gbps(4x10.3Gb/s)
Wavelength 850nmMax Cable Distance300m@OM3/400m@OM4/500m@OM5
Connector LC Duplex Cable Type MMF
Transmitter Type 4x SWDM VCSEL Receiver Type PIN
Receiver Sensitivity <-9.1dBm TX Power-7.5~ 3dBm
Receiver Overload 3dBm Commercial Temperature Range 0 to 70°C (32 to 158°F)
Power Consumption <3.5W CDRSupported
DDM/DOMSupported Host FECSupported
EMC (Electro Magnetic Compatibility) Class B EMC, IEC 61000-4-2 Bit Error Ratio (BER)1E-12
Modulation Format NRZ Extinction Ratio 2.0dB
MTBF10,500,000 Hours Warranty 5 Years

Limited Lifetime Warranty, 30-Day Return

ProtocolsQSFP+ MSA, IEEE 802.3ba XLPPI electrical interface CompliantApplication40G Ethernet over duplex MMF, Enterprise Data Center, Allows upgrades from 10GBASE-SR without changing fiber plant

Quality Testing Program
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Quality Control SystemLearn more

Take a look at our optics test program and see what truly sets us apart.


Quality Certifications
  • This product provides the lifetime warranty , which aims to reflect our greatest sincerity. Please contact us to learn more.
  • This product is in conformity with ISO9001. This system is valid to a company engaging in development, production and supply service of fiber optical products. Please contact us to learn more.
  • This product is in conformity with ISO14001. It is intended for use by an organization seeking to manage its environmental responsibilities in a systematic manner that contributes to the environmental pillar of sustainability. Please contact us to learn more.
  • This product fully accords with the WEEE, which is an environmental regulation of the European Union and aims to enhance the improvement of collection, treatment and recycling of products at the end of their life. Please contact us to learn more.
  • This product fully accords with the Russian TR CU certificate (EAC Certificate), which signifies that it complies with standards of the Customs Union's member countries as well as quality and safety requirements. Please contact us to learn more.
Please Note: Installing a third party transceiver does not void your network equipment warranty. Network equipment manufacturers all have guidelines stating that warranty support on their products will not be affected.

Direct Connection for 40G QSFP+ SWDM4 Transceivers with MMF Cassettes and Enclosures

Cisco QSFP-40G-CSR-S Compatible 40GBASE-SWDM4 QSFP+ 850nm 300m DOM LC MMF Optical Transceiver Module

£231.00

Cisco QSFP-40G-CSR-S Compatible 40GBASE-SWDM4 QSFP+ 850nm 300m DOM LC MMF Optical Transceiver Module

£231.00

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Low Power Consumption and High Performance

Built-in 4x SWDM VCSEL enables 40G stable transmission and low power consumption, saving energy and reducing heat dissipation.

4x VCSEL

SWDM Mux and Demux

<3.5W

Low Power Consumption

40Gbps

High Bandwidth


Seamless Upgrade from 10G to 40G Ethernet

The SWDM4 transceiver can re-utilize existing OM3/OM4 duplex multimode fiber plant with LC connectors, to achieve 40Gbps transmission, saving infrastructure costs.


Wider Coverage in Small Clouds and Data Centers

SWDM4 supports longer link over OM3/OM4 when compared to proprietary ‘BiDi’ transceivers and supports extended link over wideband OM5 fiber.

300m@OM3

400m@OM4

500m@OM5

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