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Ministry of Defence BT Inmarsat Science & Technology Facilities Council

Familiarise yourself with the QSFP

A QSFP+ also known as a quad small form-factor pluggable plus is a hot pluggable transceiver, also used for data communications applications and evolved as the standard to support 10Gb/s data rates per SFF-8436. Nowadays, QSFP+ has gradually replaced QSFP and is widely used by people as it can provide higher bandwidth allowing data to be moved much faster than an internet connection with a lower bandwidth.

QSFP 1

How do compatible QSFP’s work?

QSFP+ transceivers are designed to support Serial Attached SCSI, 40G Ethernet, QDR (40G) and FDR (56G) Infiniband, and other communications standards. The interconnect solution is designed for a multitude of markets and applications including switches, routers, host bus adapters (HBAs), enterprise data centres, high-performance computing (HPC) and storage.

Rather than purchasing a branded QSFP+, which can result in a substantial costs, both in maintenance and initial cost, it is worth considering a compatible QSFP+. Due to the reliability and performance renowned of branded QSFP+’s, that are well-known for hardware at a certain high-end price point, branded QSFP+’s are typically priced higher than some businesses and organisations can afford to spend.

However, due to the overwhelming popularity of branded QSFP+’s products with companies operating in the data and communications sector, we provide a wide range of compatible transceivers, compatible with industry leaders. Compatible products are substantially cheaper than their branded alternatives, however this reduction in financial cost does not result in an inferior performance or operational efficiency. This is because our brand compatible QSFP+’s are manufactured to the same high standards in order to ensure the same high results as their branded equivalents.

What are the benefits of a compatible QSFP?

• QSFP+ interfaces between communication devices like switches, routers and fibre optic cables, and performs conversions between optical and electrical signals. They typically support communications standards including synchronous optical networking/digital hierarchy, gigabit ethernet and fibre channel

• There’s a significant price difference between a branded QSFP+ and compatible QSFP+, meaning that SFP’s are now at an affordable price point for many businesses

• Compatible QSFP+ hot pluggable transceiver modules make the fibre optic or Ethernet network easier to upgrade or maintain since users can replace a single QSFP+ module during the process instead of replace the whole board with many modules on it

• QSFP+ can transfer rates up to 40Gbps

We are often asked, how does the difference in cost not equate to a similar difference in quality? At Compatible SFP we can do this as all stocked compatible QSFP+ are distributed to us by the same international ISO 9001 / 14001 facilities as used by internationally leading brands; but only being based online means Compatible SFP can deliver the same modules at a portion of the cost; yet ensure the delivery of the same high quality product. Plus, to prove how much confidence we have in the products we sell, all our products come with a full lifetime warranty, covering any unforeseen eventuality.