What is the Cisco A9K-8TB-B?
The Cisco A9K-8TB-B is a XFP optical transceiver module, listed by the manufacturer as "ASR 9000 8x10GE XFP-based line card". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
The A9K-8TB-B is a XFP optical transceiver module manufactured by Cisco. Listed by the manufacturer as "ASR 9000 8x10GE XFP-based line card", it is available through Circular Telecom's surplus and refurbished network equipment marketplace as a sustainable, tested alternative to buying new.
Common Questions
The Cisco A9K-8TB-B is a XFP optical transceiver module, listed by the manufacturer as "ASR 9000 8x10GE XFP-based line card". 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-8TB-B, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue