What is the Cisco A9K-8T-B?
The Cisco A9K-8T-B is a XFP optical transceiver module, listed by the manufacturer as "8-Port 10GE Line Card, Requires XFPs". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
Manufactured by Cisco, the A9K-8T-B (8-Port 10GE Line Card, Requires XFPs) is a XFP optical transceiver module. Circular Telecom sources, tests, and resells surplus and refurbished Cisco equipment like this as part of a lower-carbon alternative to new procurement.
Common Questions
The Cisco A9K-8T-B is a XFP optical transceiver module, listed by the manufacturer as "8-Port 10GE Line Card, Requires XFPs". 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 A9K-8T-B, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue