A9K-4T-B Cisco 4-Port 10GE Expansion module at discount

A9K‑4T‑B Specifications

Cisco ASR 9000 Series 4‑Port 10 Gigabit Ethernet Line Card (Medium Queue)

Manufacturer: Cisco
Manufacturer Model: A9K‑4T‑B
Product Line: Cisco ASR 9000 Series Line Cards
Product Series: Ethernet Line Card (4‑Port 10GE)
Product Type: Router Line Card / Expansion Module
Product Name: Cisco ASR 9000 Series 4‑Port 10 Gigabit Ethernet Line Card (Medium Queue)

KEY FEATURES:

Device Type: High‑performance Ethernet line card

Interface Type: 10 Gigabit Ethernet (requires XFP optics)

Number of Ports: 4 × 10 GbE

Port Technology: XFP‑based 10 GbE ports supporting 802.3 Ethernet standards

Queue Depth: Medium queue scheduling appropriate for balanced performance

Memory: Includes onboard memory for packet/flow handling and buffering

Designed For: Cisco ASR 9000 Series routers (modular aggregation and edge routers)

PERFORMANCE:

Ethernet Standards: 10 Mbps, 100 Mbps, 1 Gbps, and 10 Gbps 802.3 Ethernet support depending on network configuration and modules deployed

Aggregate Throughput: Full line‑rate forwarding across all 4 ports for high‑bandwidth links

Flow Handling: Supports multiple queues, policers, and Ethernet flow points for QoS and traffic engineering

IOS XR Integration: Works with Cisco IOS XR modular software architecture for scalability, service isolation, and high availability

ENVIRONMENTAL & RELIABILITY:

Designed For: Carrier Ethernet and IP/MPLS networks in service provider and large enterprise environments

Hot‑Swap Capability: Line card modules can typically be inserted/removed without powering down the chassis (supported by ASR platform)

Network Availability: Designed for high availability with redundant supervisor and power configurations in supported chassis

PHYSICAL:

Form Factor: Plug‑in line card for Cisco ASR 9000 Series router chassis

Typical Dimensions: Standard modular line card dimensions (wide, thin card suitable for ASR chassis)

Weight: Moderate module weight typical for multi‑port optical line cards

Power Consumption: Varied based on card and XFP transceivers installed

Slot Occupancy: Occupies one expansion slot in the ASR chassis