United States$5,000,000+
Inventory Delivered By
E
Edward Hughes
5
High density line card delivered excellent throughput. Stable even under peak load.
A9K-40GE-L
40PORT GE LOW QUEUE LINE CARD REQUIRES SFP
FEATURED DEAL
Name:
A9K-40GE-L
- Description:
- 40PORT GE LOW QUEUE LINE CARD REQUIRES SFP
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 779184491200
- Condition:
- Warranty:
- 3
- List Price:
$36,000.00
- Price:
$19,131.0046.9% off
Quantity:
1
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A9K-40GE-L Overview
A9K-40GE-L is a 40 Gigabit Ethernet module designed for high-performance networking environments. It supports 40Gbps data rates via QSFP+ connectors and is engineered for seamless integration with Cisco routers and switches, ensuring reliable TCP/IP connectivity for mission-critical data center and service provider applications.
Engineered with a modular form factor for easy chassis installation, the A9K-40GE-L module is ideally suited for expanding data center capacity and upgrading network interfaces. It delivers advanced features such as auto-negotiation, jumbo frame support, and QoS, providing high-speed, low-latency performance in demanding operational environments.
A9K-40GE-L price is $19,131.00, a 46.9% saving from the Cisco list price of $36,000.00. A9K-40GE-L is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for A9K-40GE-L for additional pricing. Browse the full Router Asr 9000 Modules And Cards series or explore all Cisco products.
A9K-40GE-L Specifications
- Product Type
- Network Module / Network Card
- Module Type
- Ethernet
- Data Rate
- 40Gbps
- Connector Type
- QSFP+
- Supported Protocols
- TCP/IP / Ethernet
- Form Factor
- Modular
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco
- Max Speed
- 40Gbps
- Supported Features
- Auto-negotiation / Jumbo Frames / QoS
- Power Consumption
- N/A
- Interface Ports
- Ethernet
- Expansion Slots
- N/A
- Product Name
- A9K-40GE-L
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
A9K-40GE-L Use Case
Hyperscale Data-Center Spine with A9K-40GE-L-40PORT for Unmatched Throughput
Scenario: A global cloud provider deploys the A9K-40GE-L-40PORT GE Low-Queue line card with SFPs in ASR 9000 series routers as the spine layer in a leaf-spine fabric. Outcome: Consistent sub-millisecond latency under full 1.6 Tbps load, predictable buffer management and zero-packet loss during traffic bursts. Benefit: Scales to thousands of virtual machines, accelerates East-West traffic and maintains SLAs for IaaS and PaaS workloads.
Service-Provider Metro Edge for Ultra-Low-Latency 5G Backhaul
Scenario: A Tier 1 carrier integrates A9K-40GE-L-40PORT line cards at metro POPs to aggregate 5G cell-site backhaul over 40 GE SFP interfaces. Outcome: Deterministic queuing and hardware-based QoS deliver sub-10 µs jitter and end-to-end SLA compliance for voice, video and IoT slices. Benefit: Maximizes port density, simplifies fiber management and future-proofs the edge for 5G/FTTx services.
Enterprise Hybrid-Cloud WAN with High-Density 40 GE Connectivity
Scenario: A multinational corporation leverages the A9K-40GE-L-40PORT in its ASR 9000 backbone to interconnect branch offices and public-cloud gateways via 40 GE SFP links. Outcome: Seamless dynamic bandwidth scaling, sub-1 ms inter-site latency and deterministic buffer allocation for real-time collaboration and data replication. Benefit: Reduces MPLS costs, enhances disaster recovery and accelerates cloud-native application performance.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 A9K-40GE-L |  A9K-8T-E |  A9K-2T20GE-E |  A9K-8T/4-E |  A9K-8T-L | |
|---|---|---|---|---|---|
| Product Type | Network Module / Network Card | Network Module / Network Card | Network Module / Network Card | Network Module | Network Module / Network Card |
| Module Type | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Data Rate | 40Gbps | 10Gbps | 20Gbps | 1G | 10G |
| Connector Type | QSFP+ | SFP+ | SFP+ | RJ-45 | SFP+ |
| Supported Protocols | TCP/IP / Ethernet | TCP/IP | TCP/IP, MPLS | TCP/IP | TCP/IP |
| Form Factor | Modular | Modular | Modular | PCIe | Modular |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco | Cisco | Cisco ASR9000 Series Routers | Cisco, Juniper, Arista, Dell, HP | Cisco |
| Max Speed | 40Gbps | 10Gbps | 20Gbps | 1Gbps | 10Gbps |
| Supported Features | Auto-negotiation / Jumbo Frames / QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation / Jumbo Frames / QoS |
| Power Consumption | N/A | 15W | 25W | 5W | 15W |
| Interface Ports | Ethernet | SFP+ | Ethernet | Ethernet | Ethernet |
| Expansion Slots | N/A | N/A | N/A | N/A | N/A |
| Product Name | A9K-40GE-L | Cisco A9K-8T-E Ethernet Module | Cisco A9K-2T20GE-E | A9K-8T/4-E | A9K-8T-L |
| Height | N/A | N/A | N/A | N/A | N/A |
| Width | N/A | N/A | N/A | N/A | N/A |
| Depth | N/A | N/A | N/A | N/A | N/A |
| Weight | N/A | N/A | N/A | N/A | N/A |
Reviews & Ratings
P
Patrick Sullivan
4
Low queue design helped reduce latency. Very satisfied.
C
Charles Newman
5
Solid performance for 40GE deployments. Cisco engineering shows.
H
Henry Collins
3
Handled heavy traffic reliably without errors.
W
William Dawson
4
Enterprise ready line card with predictable performance.
Questions & Answers
What is the Cisco A9K-40GE-L line card?
The Cisco A9K-40GE-L is a 40-port Gigabit Ethernet low-queue line card designed for the ASR 9000 series. It delivers high port density and optimized forwarding for service provider networks.
How many Gigabit Ethernet ports does the A9K-40GE-L support?
The A9K-40GE-L supports up to 40 independent Gigabit Ethernet ports, providing scalable connectivity for high-density deployments.
What does “low queue” mean on this line card?
Low queue means the card minimizes packet buffering to reduce latency, ensuring deterministic performance for time-sensitive applications.
Does the A9K-40GE-L require SFP modules?
Yes, the A9K-40GE-L requires external SFP or SFP-Lite transceivers for each port; the line card does not include built-in optics.