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40G Transceivers / QSFP Modules

CablesAndKits offers a wide variety of 40G QSFP and QSFP+ transceiver modules for your connectivity needs! These high-density, low power modules are hot-pluggable and come with our lifetime warranty! QSFP modules – or Quad Small Form-Factor Pluggable modules – are a key piece of equipment for high-performance computing networks and modern data centers.

Popular 40G Transceivers

Cisco Compatible 40GBase-SR4 QSFP+ Transceiver Module, QSFP-40G-SR4



Cisco 40GBase-CSR4 QSFP+ Compatible Transceiver Module, QSFP-40G-CSR4



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Juniper Compatible 40GBase-ER4 QSFP+ Transceiver Module, JNP-QSFP-40GE-ER4
Juniper Compatible 40GBase-ER4 QSFP+ Transceiver Module, JNP-QSFP-40GE-ER4
Model #: JNP-QSFP-40GE-ER4 Condition: New
Available Ships: Aug 21
Additional quantity available - Ships Aug 21
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When choosing QSFP modules, a number of different interface options and ratings are available. You'll find LC Duplex and MTP/MPO interfaces, MMF and SMF cable types, products in a wide variety of rate categories, and QSFP modules compatible with Cisco, HP, Juniper, and more. At, we carry new, factory sealed, and refurbished products, helping you find exactly what you need for your system. And with our industry-leading lifetime warranty, awesome is guaranteed.