What is the Cisco WS-X5104?
The Cisco WS-X5104 is an equipment module, listed by the manufacturer as "Cisco 4-Port FDDI Module - 4 x FDDI". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
Cisco WS-X5104: an equipment module (Cisco 4-Port FDDI Module - 4 x FDDI). Circular Telecom resells surplus and refurbished units of parts like this, helping operators extend network equipment lifecycles and reduce e-waste.
Common Questions
The Cisco WS-X5104 is an equipment module, listed by the manufacturer as "Cisco 4-Port FDDI Module - 4 x FDDI". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
Circular Telecom sources and resells surplus and refurbished Cisco network equipment, including parts such as the WS-X5104, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue