Your go-to destination for cutting-edge server products

A9K-8T-B Cisco 8 Ports 10GBPS Line Card

A9K-8T-B
* Actual product may vary from image shown.
Hover on image to enlarge

Brief Overview of A9K-8T-B

Cisco A9K-8T-B 8 Ports 10GBPS Medium Queue Line Card. Excellent Refurbished with 1 year replacement warranty

$5,771.25
$4,275.00
You save: $1,496.25 (26%)
Ask a question
+
Quote

Additional 7% discount at checkout

SKU/MPNA9K-8T-BAvailability✅ In StockProcessing TimeUsually ships same day ManufacturerCisco Product/Item ConditionExcellent Refurbished ServerOrbit Replacement Warranty1 Year Warranty
Google Top Quality Store Customer Reviews
Our Advantages
Payment Options
  • — Visa, MasterCard, Discover, and Amex
  • — JCB, Diners Club, UnionPay
  • — PayPal, ACH/Bank Transfer (11% Off)
  • — Apple Pay, Amazon Pay, Google Pay
  • — Buy Now, Pay Later - Affirm, Afterpay
  • — GOV/EDU/Institutions PO's Accepted 
  • — Invoices
Delivery
  • — Deliver Anywhere
  • — Express Delivery in the USA and Worldwide
  • — Ship to -APO -FPO
  • For USA - Free Ground Shipping
  • — Worldwide - from $30
Description

Overview of the Cisco A9K-8T-B 8-port 10 Gigabit Ethernet

The Cisco A9K-8T-B is a high-performance 8-port 10 Gigabit Ethernet medium queue line card designed to enhance scalability and efficiency in modern networking infrastructures. Built for demanding enterprise and service provider environments, this expansion module delivers reliable high-speed connectivity, seamless system integration, and optimized traffic handling for next-generation data transmission needs.

General Information

  • Brand: Cisco
  • Model: A9K-8T-B
  • Product Type: Ethernet Line Card
  • Category: Network Expansion Module

Technical Specifications

  • Connection Type: Wired networking interface
  • Supported Protocols: Gigabit Ethernet, 10 Gigabit Ethernet
  • Remote Administration: SNMPv3 secure management support
  • IPv4 Routing Capacity: Up to 1,300,000 routes
  • MAC Address Support: Up to 1,000,000 entries

I/O Expansion Capabilities

  • Total Ports: 8 high-speed interfaces
  • Available Slots: 8 XFP-compatible slots
  • Expansion Slot Count: 1 dedicated module slot
  • Interface Type: XFP optical support

Power

  • Maximum Power Consumption: 350W – 630W (depending on configuration)
  • Typical Power Usage: 310W – 565W under normal operation

Compatibility

  • Cisco ASR 9000 Series Router platforms
  • Carrier-grade aggregation network systems
  • High-capacity service provider routing environments

Cisco A9K-8T-B 8 Ports 10GBPS Medium Queue Line Card

The Cisco A9K-8T-B 8 Ports 10GBPS Medium Queue Line Card is a high-performance network interface module designed for carrier-grade routing environments and large-scale service provider infrastructures. It is engineered to deliver consistent throughput, stable packet processing, and reliable high-speed connectivity across demanding IP networks. This line card is built to integrate seamlessly within Cisco ASR 9000 Series routers, enabling scalable and efficient data transport in modern backbone and aggregation layers.

This hardware component plays a critical role in environments where uninterrupted data flow, low latency, and predictable performance are essential. It supports multiple high-speed Ethernet interfaces and is optimized for environments handling massive traffic loads such as internet service providers, enterprise data centers, and telecom backbone systems.

Advanced Hardware Structure

The Cisco A9K-8T-B line card is constructed with a robust architecture that focuses on high-density port utilization and optimized packet forwarding. Each of the eight ports is capable of delivering 10 Gigabits per second connectivity, allowing the system to handle large-scale data transmission with minimal congestion. The hardware design is optimized to support continuous operation under heavy workloads, ensuring stability even during peak traffic periods.

Its internal processing components are designed to distribute traffic efficiently across multiple processing pipelines. This reduces bottlenecks and ensures that each packet is handled with precision and speed. The architecture is tailored for scalability, making it suitable for growing networks that require expansion without compromising performance.

Medium Queue Buffer System

One of the key features of this line card is its medium queue buffering system. This system is responsible for managing traffic congestion and ensuring smooth packet flow across network interfaces. The buffering mechanism is carefully balanced to provide optimal performance for mixed traffic environments where latency-sensitive and bandwidth-intensive applications coexist.

The queue system prioritizes efficient packet scheduling, ensuring that critical data such as voice, video, and real-time applications receive appropriate handling. At the same time, bulk data transfers are managed in a way that prevents network congestion and packet loss.

Eight High-Speed 10GBPS Interfaces

The Cisco A9K-8T-B line card includes eight independent 10 Gigabit Ethernet ports, each capable of supporting high-throughput data transmission. These ports are designed for flexible deployment in aggregation and core network layers, where high-speed connectivity is essential.

Each port is optimized for consistent performance under varying traffic conditions. Whether handling burst traffic or sustained data streams, the ports maintain stability and reliability, ensuring uninterrupted communication between network nodes.

Flexible Network Integration

The line card supports integration into complex network topologies, enabling service providers to build scalable architectures. It is compatible with high-capacity routing platforms and supports seamless interoperability with other Cisco networking components.

This flexibility allows network administrators to deploy the line card in a variety of configurations, including metro Ethernet networks, backbone routing systems, and large enterprise infrastructures.

Performance Optimization Environments

The Cisco A9K-8T-B line card is engineered to manage high volumes of network traffic with minimal performance degradation. It incorporates intelligent traffic handling mechanisms that distribute data flows evenly across available resources.

This ensures that no single port becomes overloaded while others remain underutilized. The balanced distribution of traffic enhances overall system efficiency and reduces the likelihood of congestion-related issues.

Quality of Service Prioritization

The line card supports advanced traffic prioritization mechanisms that allow network administrators to define service levels for different types of data. Critical applications are given higher priority, ensuring that they receive the necessary bandwidth and reduced latency.

This capability is essential in environments where multiple services share the same infrastructure, such as voice over IP, video conferencing, and cloud-based applications.

Deployment in Service Provider Networks

In service provider environments, the Cisco A9K-8T-B line card is commonly deployed in core routing systems where high-capacity data handling is required. It supports backbone connectivity between large network segments, ensuring smooth data flow across geographically distributed infrastructures.

Its high port density and robust processing capabilities make it suitable for handling large-scale internet traffic and interconnection between multiple service domains.

Expandable Network Architecture

The Cisco A9K-8T-B line card is designed to support scalable network expansion. As demand increases, additional line cards can be integrated into the system without requiring major architectural changes. This modular approach allows network operators to scale capacity gradually based on operational requirements.

Scalability is a critical factor in modern network design, and this line card provides the flexibility needed to accommodate long-term infrastructure growth.

Future-Proof Network

The hardware architecture is built with future network demands in mind. It supports evolving traffic patterns and increasing bandwidth requirements, ensuring that it remains relevant in high-performance networking environments for extended periods.

Reliability and Operational Stability

The Cisco A9K-8T-B line card is built to meet carrier-grade reliability standards. It is engineered for continuous operation in mission-critical environments where downtime is not acceptable. The hardware is tested to withstand long-term usage under heavy workloads.

This reliability ensures consistent network performance and reduces the risk of service interruptions.

Optimized Bandwidth Usage

The line card is designed to maximize bandwidth utilization across all active interfaces. It ensures that available network resources are used efficiently, reducing waste and improving overall system performance.

Efficient bandwidth management is critical in high-density networks where multiple services compete for limited resources.

Data Center Connectivity

In data center environments, the Cisco A9K-8T-B line card supports high-speed server interconnectivity and backbone switching. It enables fast data exchange between storage systems, compute clusters, and external networks.

Enterprise Backbone Infrastructure

Large enterprises utilize this line card to build robust internal networking systems that connect multiple offices, branches, and remote locations. Its high-speed capabilities ensure seamless communication across distributed environments.

Features
Product/Item Condition:
Excellent Refurbished
ServerOrbit Replacement Warranty:
1 Year Warranty
Customer Reviews