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Optical Transceivers

SFP, QSFP28, QSFP-DD and OSFP modules: form factors, reach codes, compatibility and buying checklists.

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A transceiver choice comes down to three things: the form factor your switch takes, the reach and fiber type of the link, and whether the module is coded and tested for your switch platform.

Start with the form-factor comparison, then the 400G reach guide. The compatibility and procurement articles list what to check before a volume order.

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