40G QSFP+ Transceivers

40G QSFP+ Transceivers

All of our QSFP+ transceivers are fully tested ensuring that they meet industry standards and provide a high performing, cost efficient solution for your network needs.

Key Features

Our 40G QSFP+ transceivers are fully compatible with major brand manufacturer equipment and our products are tested at the manufacturer facility to ensure the highest possible quality. The 40G QSFP+ transceivers that we stock at Carritech are compatible with the following vendor equipment:



We also stock generic versions of these types of transceiver.

Technical Information

There are different types of QSFP+ transceivers with varying characteristics, providing a choice of product depending on the specifications and requirements of your network.

QSFP+ Transceiver Specification

Name Wavelength Interface TX Power
Receiver Sensitivity
Max Data Rate
QSFP-SR4-40G 850nm MTP/MPO -5.6~3dBm < -5.4dBm 40Gbps
QSFP-BD-40G 832nm -918nm LC duplex
QSFP-PIR4-40G 1310nm MTP/MPO
QSFP-LX4-40G LC duplex
QSFP-IR4-40G LC duplex
QSFP-LR4-40G LC duplex -7~2.3dBm <-11.5dBm
QSFP-PLR4-40G MTP/MPO -7~2.3dBm <-11.5dBm
QSFP-ER4-40G LC duplex -3.7~+4.5dBm <-20.2dBm
CFP-LR4-40G LC duplex -13.7~2.3dBm <-9.6dBm

Notes: the temperature range of the QSFP-BD-40G is 10 to 70°C (50 to 158°F) , and others is 0 to 70°C (32 to 158°F).

Direct Attach Copper (DOC) and Active Optical Cables (AOC)

Name Connector Type
Cable Type
Max Data Rate Temperature Cable Length
QSFP-40G-DAC QSFP+ to QSFP+ Passive Copper Cable 40Gbps 0 to 70°C Up to 7m
QSFP-4SFP10GDAC QSFP+ to 4 SFP+ Passive Copper Cable 0 to 70°C Up to 5m
QSFP-40G-DAC QSFP+ to QSFP+ Active Copper Cable 0 to 70°C Up to 10m
QSFP-4XFP10GDAC QSFP+ to 4 XFP Passive Copper Cable 0 to 70°C Up to 2m
QSFP-40G-AOC QSFP+ to QSFP+ Active Copper Cable 0 to 70°C Up to 100m
QSFP-4SFP10GAOC QSFP+ to 4 SFP+ Active Copper Cable 0 to 70°C Up to 30m
QSFP-8X-AOC QSFP+ to 4 duplex LC Active Copper Cable 0 to 70°C Up to 100m

Quality Assurance

Our Testing Standards

Wherever possible, our equipment is tested to ensure that it is in full working order before it leaves the manufacturing facility.

Any test reports that are produced are made available upon request.

We pride ourselves on providing the highest quality of products to our customers at all times.


All the manufacturer branded transceivers that Carritech supply are compatible with the manufacturer switches, icluding brands suchas Cisco, Juniper, HP and Marconi.

Professional Service

At Carritech, we pride ourselves on our industry knowledge and professional service.

You can be assured that our dedicated account management team will assist you with your requirements to ensure that you receive your products as quickly as possible, on time and within budget.

Our experience in the industry, our partners and over 40 years of combined technical knowledge means we are the go-to supplier for your networking needs.

ISO:9001 & ISO:14001 Certified

Carritech are a accredited with ISO:9001 Quality Management and ISO:15001 Environmental Management certifications.


The ISO 9000 family of quality management systems standards is designed to help organizations ensure that they meet the needs of customers and other stakeholders while meeting statutory and regulatory requirements related to a product or program.


ISO 14000 is a family of standards related to environmental management that exists to help organizations minimize how their operations negatively affect the environment, comply with applicable laws, regulations, and other environmentally oriented requirements; and continually improve in the above.

Request a Quote

Our dedicated sales team are on hand to provide a quote within 24 hours.




Company Name

* = Required

Parts Required

Upload parts list

I would like to receive offers and product information via email:

Latest Products...

Products added daily

Keep up to date with our latest product updates

View updates

56 Results

Manufacturer Model Product Number Description Request a quote
CISCOQSFP+QSFP-40G-SR4Cisco QSFP-40G-SR4 Compatible 40GBASE-SR4 QSFP+ 850nm 150m MTP/MPO DOM Transceiver ModuleContact us about the QSFP-40G-SR4
CISCOQSFP+QSFP-40G-CSR4Cisco QSFP-40G-CSR4 Compatible 40GBASE-CSR4 QSFP+ 850nm 400m MTP/MPO DOM Transceiver ModuleContact us about the QSFP-40G-CSR4
CISCOQSFP+QSFP-40G-PLRL4Cisco QSFP-40G-PLRL4 Compatible 40GBASE-PLRL4 QSFP+ 1310nm 1.4km MTP/MPO DOM Transceiver ModuleContact us about the QSFP-40G-PLRL4
CISCOQSFP+QSFP-40G-UNIVCisco QSFP-40G-UNIV Compatible 40GBASE-UNIV QSFP+ 1310nm 2km LC DOM Transceiver Module for SMF&MMFContact us about the QSFP-40G-UNIV
CISCOQSFP+WSP-Q40GLR4LCisco WSP-Q40GLR4L Compatible 40GBASE-LR4L QSFP+ 1310nm 2km LC DOM Transceiver ModuleContact us about the WSP-Q40GLR4L
CISCOQSFP+QSFP-40GE-LR4Cisco QSFP-40GE-LR4 Compatible 40GBASE-LR4 QSFP+ 1310nm 10km LC DOM Transceiver ModuleContact us about the QSFP-40GE-LR4
CISCOQSFP+QSFP-4X10G-LR-SCisco QSFP-4X10G-LR-S Compatible 4x10GBASE-LR QSFP+ 1310nm 10km MTP/MPO DOM Transceiver ModuleContact us about the QSFP-4X10G-LR-S
CISCOQSFP+QSFP-40G-ER4Cisco QSFP-40G-ER4 Compatible 40GBASE-ER4 and OTU3 QSFP+ 1310nm 40km LC DOM Transceiver ModuleContact us about the QSFP-40G-ER4
CISCOQSFP+QSFP-40G-SR-BD Cisco QSFP-40G-SR-BD Compatible 40GBASE-SR Bi-Directional Duplex LC Transceiver ModuleContact us about the QSFP-40G-SR-BD
JUNIPERQSFP+EX-QSFP-40GE-SR4Juniper Networks EX-QSFP-40GE-SR4 Compatible 40GBASE-SR4 QSFP+ 850nm 150m MTP/MPO DOM Transceiver ModuleContact us about the EX-QSFP-40GE-SR4

If you are unable to find what you are looking for please contact us on sales@carritech.com or +44 203 006 1170

Client login

Lost your password?

Pin It on Pinterest