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ASR5K-011G2-SX-K9
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GLC2 1-Port 1xGbE Line Card - 2nd Gen w/SX MM SFP
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Name:
ASR5K-011G2-SX-K9
- Description:
- GLC2 1-Port 1xGbE Line Card - 2nd Gen w/SX MM SFP
- Rating:
Added to cart 28 times recently
- Availability:
Ready to Ship
- Brand:
- Cisco
- GTIN:
- 740617066326
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
- Warranty:
- 90
- List Price:
$12,000.00
- Price:
$5,925.1550.6% off
Quantity:
1
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ASR5K-011G2-SX-K9 Overview
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 for new stock is $6,694.80, a 44.2% saving from the Cisco list price of $12,000.00. ASR5K-011G2-SX-K9 refurb price is $5,925.15. ASR5K-011G2-SX-K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for ASR5K-011G2-SX-K9 for additional pricing. Browse the full category range or explore all Cisco products.
ASR5K-011G2-SX-K9 Specifications
- Product Type
- Network Module
- Brand
- Cisco
- Module Type
- Ethernet
- Data Rate
- 1G
- Connector Type
- SFP
- Supported Protocols
- TCP/IP
- Form Factor
- Modular
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco
- Max Speed
- 1Gbps
- Supported Features
- Auto-negotiation, Jumbo Frames, QoS
- Interface Ports
- Ethernet, SFP
- Product Name
- ASR5K-011G2-SX-K9
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Product Comparison Table 
| 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 |
| Form Factor | Modular | Modular | Modular | PCIe | PCIe |
| 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 |
| 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 |
| 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 |
Compliance & Warranty
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Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
S
Sherlock Holmes
Reviewed on the 6 October 2021
4
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.
J
John Watson
Reviewed on the 19 August 2024
5
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.
M
Mycroft Holmes
Reviewed on the 24 September 2018
5
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.
I
Irene Adler
Reviewed on the 22 June 2020
5
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.
J
James Moriarty
Reviewed on the 14 March 2018
4
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.
Questions & Answers
What is the GLC2 1-Port 1xGbE Line Card – 2nd Gen w/SX MM SFP (ASR5K-011G2-SX-K9)?
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.
Which Cisco routers support the ASR5K-011G2-SX-K9 line card?
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.
What fiber type does the SX MM SFP module use?
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.
What is the maximum throughput of the ASR5K-011G2-SX-K9 line card?
The ASR5K-011G2-SX-K9 delivers a single 1 Gbps full-duplex throughput, ideal for aggregated subscriber or backhaul links.
How far can the SX MM SFP reach with multimode fiber?
Using 50 µm multimode fiber, the SX MM SFP supports up to 550 meters; on 62.5 µm fiber, it supports up to 275 meters per IEEE 802.3z specifications.
Does the ASR5K-011G2-SX-K9 support hot-swap installation?
Yes. The ASR5K-011G2-SX-K9 supports hot-swappable insertion and removal without disruption to traffic when used in a redundant supervisor configuration.
How do I install the GLC2 1-Port 1xGbE line card on my router?
Power down or enter redundant supervisor mode, slide the ASR5K-011G2-SX-K9 into an available line-card slot until it clicks, then power up or revert to active supervisor.
What distinguishes the 2nd Gen line card from the 1st Gen?
The 2nd Gen ASR5K-011G2-SX-K9 offers improved forwarding capacity, enhanced energy efficiency, updated FPGA for newer IOS XE features, and extended optical link diagnostics.
What temperature range does the ASR5K-011G2-SX-K9 operate in?
The ASR5K-011G2-SX-K9 operates reliably from 0 °C to 40 °C (32 °F to 104 °F) in standard ambient conditions per Cisco environmental specifications.
Is the ASR5K-011G2-SX-K9 RoHS compliant?
Yes. The ASR5K-011G2-SX-K9 is fully RoHS-compliant, meeting all European Union directives on hazardous substances.
What warranty and support does Cisco offer for this line card?
Cisco provides a lifetime warranty covering defects in materials and workmanship, plus optional SMARTnet support for 24/7 access to software updates, hardware replacement and technical assistance.
Can I monitor optical parameters on the SX MM SFP?
Yes. The SX MM SFP supports Digital Optical Monitoring (DOM), allowing real-time monitoring of optical power, temperature and transceiver status via SNMP or CLI.
How do I configure the line card in Cisco IOS XE?
Enter interface configuration mode with 'interface GigabitEthernet slot/port', assign IP or bridge domain settings, enable the port with 'no shutdown', and verify with 'show interfaces'.
What connector type is used on the SX MM SFP port?
The SX MM SFP port uses a standard LC duplex connector, ensuring compatibility with common multimode fiber patch cords.
Where can I purchase the ASR5K-011G2-SX-K9 line card?
Genuine Cisco ASR5K-011G2-SX-K9 line cards are available through authorized Cisco resellers, distribution partners and the Cisco Commerce Workspace online portal.
How do I troubleshoot link-up issues on the SX MM SFP?
Verify fiber polarity and cleanliness, confirm multimode fiber type and distance limits, check 'show interfaces transceiver detail' for DOM diagnostics, and replace the module if parameters exceed thresholds.
What is the official Cisco part number for this module?
The official Cisco part number for the 2nd Gen SX MM SFP line card is ASR5K-011G2-SX-K9, also referenced as GLC2-1-SX in Cisco documentation.