Cisco Systems Transceiver Modules

Cisco Systems DWDM-SFP-3898= Part #: DWDM-SFP-3898=	Cisco Systems DWDM-SFP-3977= Part #: DWDM-SFP-3977=	Cisco Systems DWDM-SFP-4056= Part #: DWDM-SFP-4056=
Cisco Systems DWDM-SFP-4134= Part #: DWDM-SFP-4134=	Cisco Systems DWDM-SFP-4214= Part #: DWDM-SFP-4214=	Cisco Systems DWDM-SFP-4294= Part #: DWDM-SFP-4294=
Cisco Systems DWDM-SFP-4373= Part #: DWDM-SFP-4373=	Cisco Systems DWDM-SFP-4453= Part #: DWDM-SFP-4453=	Cisco Systems DWDM-SFP-4532= Part #: DWDM-SFP-4532=

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November 12, 2025

Terabit Systems

Technician inspecting network switches in a data center with caption.

The Case for Second-Hand: Why Smart Network Teams Are Buying Refurbished Gear

The enterprise IT world has a bias toward the new: new gear, new firmware, new models. But for many network operators, architects, and data center managers, that’s starting to change. The cost, complexity, and delay of buying brand-new hardware is pushing smart teams to rethink their...

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