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MA-QSFP-40G-SR-BD VS Cisco QSFP-40G-CSR4: A Comparative Analysis

Welcome to the wild world of networking! In this era of hyper-connectivity, where communication and data transfer rules the roost, having a solid network infrastructure is more important than ever. Luckily, Cisco, the superhero of networking solutions, has been saving the day with its high-performance products. Two of their popular players in this game are the Cisco MA-QSFP-40G-SR-BD and Cisco QSFP-40G-CSR4. So, grab your cape and join us on this thrilling blog post as we unravel the exciting specifications and quirky differences, and uncover the perfect fit for your unique networking needs.


Product Specifications:

Now, let’s dig into the juicy details of these transceiver modules that possess some serious skills in enabling efficient data transmission across networks.


The Cisco MA-QSFP-40G-SR-BD:


Form Factor: QSFP (Quad Small Form-factor Pluggable)

Data Rate: A blazing-fast 40 Gigabit Ethernet

Interface: Multimode Fiber (OM3/OM4)

Maximum Reach: Up to 100 meters (Because even superpowers have their limits)

Wavelength: 850nm (The wavelength of awesomeness)

Connector Type: MPO/MTP (Fancy connectors, just like a secret agent’s gadgets)

Compatibility: Compatible with Cisco networking equipment (Because they like to stick with their own squad)


The Cisco QSFP-40G-CSR4:

Cisco QSFP-40G-CSR4

Form Factor: QSFP (Quad Small Form-factor Pluggable)

Data Rate: 40 Gigabit Ethernet (Hold on tight for the data speed rollercoaster!)

Interface: Multimode Fiber (OM3/OM4)

Maximum Reach: Up to 300 meters (Going the distance like an Olympic sprinter)

Wavelength: 850nm (Keeping it consistent, like a reliable sidekick)

Connector Type: MPO/MTP (The cool connectors that bring everything together)

Compatibility: Compatible with Cisco networking equipment (Because superheroes stick together)


Differences between Cisco MA-QSFP-40G-SR-BD & Cisco QSFP-40G-CSR4:

Now, let’s uncover the hidden gems and quirky differences that make these transceivers unique, like the dynamic duo of the networking world.


Reach and Distance: In the epic battle of reach, the Cisco MA-QSFP-40G-SR-BD can soar up to 100 meters, while its counterpart, the Cisco QSFP-40G-CSR4, stretches its powers up to 300 meters. So, whether you’re a “short and sweet” kind of network or need to cover vast distances, choose wisely!


Wavelength: Both these heroes operate at the same wavelength, 850nm, like a synchronized dance routine. They know the importance of staying in harmony with your existing network infrastructure.


Compatibility: Just like the inseparable duo, Batman and Robin, these transceivers are designed to work seamlessly with Cisco networking equipment. But remember to do your due diligence and check their compatibility with specific models and firmware versions. No surprises, please!


Look at Different Networking Needs:

Let’s put on our detective hats and analyze different networking scenarios to discover which transceiver is the perfect match for each case.


Small to Medium-Sized Networks: If your network is cozier than a superhero lair and requires shorter link distances, the cost-effective and compatible Cisco MA-QSFP-40G-SR-BD is your sidekick of choice. It’ll save the day without breaking the bank!


Large Networks or Data Centers: For those sprawling networks or data centers where longer reach is a must, unleash the power of the Cisco QSFP-40G-CSR4. It can transmit data up to 300 meters, providing the flexibility and scalability worthy of a big-league hero.



In this epic battle of networking heroes, both the Cisco MA-QSFP-40G-SR-BD and Cisco QSFP-40G-CSR4 shine brightly. By considering factors like reach, wavelength, and the size of your network, you can determine which caped crusader is the perfect fit for your unique requirements. Whether you choose the Cisco MA-QSFP-40G-SR-BD for those shorter distances or the Cisco QSFP-40G-CSR4 to conquer longer reaches, rest assured that Cisco’s unwavering commitment to high-performance networking solutions will keep your network running like a well-oiled machine. So, gear up, choose your hero wisely, and embark on an exciting networking adventure that will leave your competitors in awe.