What is the Cisco 6DS3-SMB-B?
The Cisco 6DS3-SMB-B is a circuit card / line card, listed by the manufacturer as "6PT DS3 LINE CARD W/ ECC". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
Manufactured by Cisco, the 6DS3-SMB-B (6PT DS3 LINE CARD W/ ECC) is a circuit card / line card. 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 6DS3-SMB-B is a circuit card / line card, listed by the manufacturer as "6PT DS3 LINE CARD W/ ECC". 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 6DS3-SMB-B, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue