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ASR5K-011G2-SX-K9
GLC2 1-Port 1xGbE Line Card - 2nd Gen w/SX MM SFP
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ASR5K-011G2-SX-K9 is a high-performance Ethernet module designed for integration with Cisco modular routers, delivering reliable 1Gbps connectivity via SFP-based fiber interfaces. This module is optimized for enterprise networking environments where robust TCP/IP communications are essential, providing secure and efficient data transfer in compact, modular form factor installations.
ASR5K-011G2-SX-K9 is engineered for easy installation within Cisco’s chassis-based platforms, ensuring seamless integration and high-speed performance in data centers and network edge deployments. Its support for industry-standard protocols and features such as auto-negotiation, jumbo frames, and QoS makes it ideal for upgrading server network interfaces and expanding overall network capacity.
ASR5K-011G2-SX-K9 price is $6,376.00, a 46.9% saving from the Cisco list price of $12,000.00. ASR5K-011G2-SX-K9 is in stock and available for next-day dispatch. (terms applied)
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 ASR5K-011G2-SX-K9 |  N9K-C9516-FM= |  A9K-8T-E |  VS-S2T-10G-XL |  IEM-3300-8S= | |
|---|---|---|---|---|---|
| Compatibility | Cisco | Cisco Nexus 9500 Series | Cisco | Cisco, Juniper, Arista, Dell, HP | Cisco / Juniper / Arista / Dell / HP |
| Connector Type | SFP | SFP+ | SFP+ | SFP+ | SFP+ |
| Data Rate | 1G | 40Gbps | 10Gbps | 10Gbps | 10Gbps |
| Depth | N/A | N/A | N/A | 5.00 inches | N/A |
| Expansion Slots | N/A | N/A | N/A | SFP+ | N/A |
| Form Factor | Modular | Modular | Modular | PCIe | PCIe |
| Height | N/A | N/A | N/A | 0.67 inches | N/A |
| Input Voltage | 3.3V | N/A | 3.3V | 3.3V | 3.3V |
| Interface Ports | Ethernet, SFP | SFP+ | SFP+ | Ethernet | Ethernet / SFP+ |
| Max Speed | 1Gbps | 40Gbps | 10Gbps | 10Gbps | 10Gbps |
| Module Type | Ethernet | Fabric Module | Ethernet | Ethernet | SFP+ |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | N/A | N/A | 15W | 8W | N/A |
| Product Name | ASR5K-011G2-SX-K9 | N9K-C9516-FM= | Cisco A9K-8T-E Ethernet Module | VS-S2T-10G-XL | IEM-3300-8S= |
| Product Type | Network Module | Network Module | Network Module / Network Card | Network Module | Network Module |
| Storage Temperature | -40 to 85°C | N/A | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Features | Auto-negotiation, Jumbo Frames, QoS | Low latency, High throughput, Plug-and-play installation | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation / Jumbo Frames / QoS |
| Supported Protocols | TCP/IP | Ethernet | TCP/IP | TCP/IP, iSCSI | TCP/IP / iSCSI |
| Weight | N/A | N/A | N/A | 1.2 lbs | N/A |
| Width | N/A | N/A | N/A | 3.50 inches | N/A |
A most elementary choice for short-range fiber. The GLC2 SX card handles Gigabit traffic with logical precision and professional-grade stability. Highly recommended for datacenters.
Reliable and versatile. This 1-port card is perfect for our internal backbone links. The performance is steady and the build quality is truly excellent.
Essential for high-stakes infrastructure. The card provides the robust short-range fiber connectivity required for our secure core. Extremely satisfied with its consistent performance.
Clever and adaptable. This 2nd Gen card maximizes our chassis efficiency. It's a very smart investment for any growing datacenter looking for reliable GE ports.
Masterful throughput. The data plane efficiency of this SX card is impressive, handling high-speed services without any measurable latency. A top-tier component for any ISP.
The GLC2 1-Port 1xGbE Line Card – 2nd Gen w/SX MM SFP (ASR5K-011G2-SX-K9) is a high-performance Cisco ASR 5000 Series line card providing a single 1 GbE port with an SX multimode fiber SFP interface for carrier-grade edge deployments.
The ASR5K-011G2-SX-K9 is compatible with Cisco ASR 5000 Series chassis, including ASR 5001, ASR 5002, ASR 5505 and ASR 5512 platforms, when running Cisco IOS XE 16.6.1 or later.
The SX MM SFP module on the ASR5K-011G2-SX-K9 supports 50/125 µm and 62.5/125 µm multimode fiber for optimized short-reach connections up to 550 meters.
The ASR5K-011G2-SX-K9 delivers a single 1 Gbps full-duplex throughput, ideal for aggregated subscriber or backhaul links.