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Cisco Catalyst Series SFP, SFP+, X2, XENPAK, Optical Modules, Uplinks, and Transeivers

Essential Technologies is your essential source for new, used, refurbished, and recertified Cisco Catalyst SFP, Networking, and Optical Modules. Whether it's a complete switch, upgrades, components, or parts, you can count on Essential to provide quality equipment that meets your IT objectives - and exceeds your expectations - every time.

All products are 100% original, tested, and eligible for SmartNet, or a 3rd-party support contract. Whether you have a specific system in mind, or if you need alternatives, we have the solution that's right for you.

We will also buy back your new or pre-owned IT equipment.

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Refurbished Cisco SFP's and Optics

Cisco 1GB Modules

Cisco 10GB Modules

Cisco 40GB Modules

Cisco 100GB Modules

Cisco 3750-X / 3560-X Network Uplink Modules

Cisco 10GB X2 Optics

Cisco XENPAK Optics