Cisco ASR 9000 Series Line Card A9K-4T-B Overview
Cisco ASR 9000 Series Line Card A9K-4T-B is a genuine modular capacity expansion product from Cisco, a leading enterprise networking vendor whose Catalyst, Nexus and ISR families power campus, data-center and branch networks worldwide. Belonging to the Cisco ASR 9000 Series family, the A9K-4T-B unit is built to the original factory specification, so it integrates with existing Cisco deployments predictably and behaves exactly as the platform documentation describes. In the network, it is deployed as a standalone unit or as part of a larger managed network, following the standard operating procedures of the platform.
From a specification standpoint, it offers 4 ports for client, server or uplink connectivity. These are the original factory figures for this model, giving administrators a clear picture of what the unit can deliver before it enters service. Standard mounting, cabling and management practices apply, so deployment follows the same procedures as other Cisco hardware already running in the environment.
Typical deployments include adding ports and performance to existing chassis systems, modernizing legacy platforms with compatible line cards, and mixing copper, fiber and high-speed uplinks in one chassis. Organizations commonly source it for refresh programs, capacity expansion and spares management, keeping a tested unit on hand so outages stay short and replacements are predictable. The factory detail for this unit reads: “Cisco ASR 9000 Series 4-Port 10 Gigabit Ethernet Line Card A9K-4T-B Requires XFPs”. This makes it a practical choice when original-spec hardware is required at a predictable cost.
Every unit at LinkNewNet is inspected and tested before dispatch, and stock is graded, cleaned and verified for correct operation, including port status, console access and firmware state. Our warranty coverage and responsive technical support protect the purchase after it arrives, and our team can confirm revision levels and software compatibility before you order. For volume requirements we also offer configuration checks and staged delivery options.
Contact our sales team for current availability, lead time and shipping options for the A9K-4T-B. We respond quickly with stock status and a firm quote, so you can plan the refresh or expansion with confidence.
Key Specifications
Applications
Enterprise WAN
Branch and campus routing with advanced services.
Service Provider
Edge routing for ISP and MPLS deployments.
Data Center
Interconnect core and aggregation layers reliably.
Buying a Pre-Owned A9K-4T-B
Verify the unit is tested, firmware confirmed, and condition documented. Every unit is fully tested and warranty covered. Contact our team for current stock and availability.
| A9K-4T-B | |
| Product list | |
| Product code | A9K-4T-B |
| Power cable | No |
| Button | No |
| Product parameters | |
| Port | 4 |
| Expansion Slots | 4 (total) / 4 (free) x XFP |
| Compatible Slots | 1 x expansion slot |
| Expansion Slot Type | XFP |
| Data Link Protocol | 10 GigE |
| Application | Data Networking |
| Introduction | The Cisco ASR 9000 Series 4-Port 10 Gigabit Ethernet Line Card is the latest generation of service provider focused Carrier Ethernet line card from Cisco. This line card deliver economical, scalable, highly available, line-rate Ethernet and IP services. |
| Physical specifications | |
| Width | 1.7 in |
| Height | 14 in |
| Depth | 20.5 in |
| Weight | 14 lbs |
| Environmental Parameters | |
| Min Operating Temperature | 41 °F |
| Max Operating Temperature | 104 °F |
| Humidity Range Operating | 10 - 85% (non-condensing) |
Compatibility Information | |
| Designed For | Cisco ASR 9000 Series Aggregation Services Routers |







