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ASR5K-041GE-LX-K9
QGLC 4-Port Ethernet 1000 Line Card w/LX SM Long Haul SFP
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ASR5K-041GE-LX-K9 is a high-performance Ethernet network module that delivers 1Gbps connectivity through SFP ports supporting 1000BASE-LX optical interfaces. Designed for seamless integration with Cisco routers and other networking platforms, this module/card is ideal for connecting to high-speed networks in data centers and enterprise environments.
Built with a modular form factor for straightforward installation in chassis-based systems, ASR5K-041GE-LX-K9 supports TCP/IP protocols and advanced features such as auto-negotiation, jumbo frames, and QoS to ensure efficient, reliable data transfer. Its purpose-built design makes it a reliable choice for upgrading network interfaces and expanding overall network capacity.
ASR5K-041GE-LX-K9 price for new stock is $16,182.60, a 44.2% saving from the Cisco list price of $29,000.00. ASR5K-041GE-LX-K9 refurb price is $4,971.46. ASR5K-041GE-LX-K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for ASR5K-041GE-LX-K9 for additional pricing. Browse the full category range or explore all Cisco products.
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| ASR5K-041GE-LX-K9 |  WS-X4624-SFP-E |  WS-X4748-RJ45V+E |  WS-X6908-10G-2TXL |  IEM-3300-16P | |
|---|---|---|---|---|---|
| Compatibility | Cisco | Cisco Catalyst 4500-E Series | Cisco | Cisco | Routers / Switches / Servers |
| Connector Type | SFP | SFP | RJ-45 | SFP+ | RJ-45 |
| Data Rate | 1Gbps | 1Gbps | 1Gbps | 10Gbps | 1G |
| Form Factor | Modular | Modular | Modular | Modular | PCIe |
| Interface Ports | Ethernet | SFP | Ethernet | SFP+ | Ethernet |
| Max Speed | 1Gbps | 1Gbps | 1Gbps | 10Gbps | 1Gbps |
| Module Type | Ethernet | SFP | Ethernet | Ethernet | Ethernet |
| Operating Temperature | 0 to 70°C | 0 to 55°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Product Name | ASR5K-041GE-LX-K9 | Cisco WS-X4624-SFP-E Ethernet Services Module | WS-X4748-RJ45V+E | WS-X6908-10G-2TXL | IEM-3300-16P |
| Product Type | Network Module / Network Card | Network Module / Network Card | Network Module | Network Module / Network Card | Network Module |
| Supported Features | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation / Jumbo Frames | Auto-negotiation / Jumbo Frames / QoS |
| Supported Protocols | TCP/IP | TCP/IP | TCP/IP | TCP/IP | TCP/IP, UDP |
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.
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.
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.
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.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviewed on the 13 August 2019
The QGLC LX card is a beast for long-haul GE. It provides consistent signal over single-mode fiber. Reliability has been 100% since installation. Great build.
Reviewed on the 8 November 2018
Tough and dependable. This 4-port line card handles our long-distance traffic spikes without breaking a sweat. It's a reliable heart for our core infrastructure.
Reviewed on the 9 February 2020
Sharp performance and steady throughput. This LX card ensures our long-haul core remains at peak efficiency. Highly satisfied with the signal quality and stability.
Reviewed on the 5 August 2025
Fast and efficient. Upgrading to this LX card allowed us to scale our long-distance bandwidth effortlessly. The hardware is robust and performs flawlessly in production.
Reviewed on the 11 November 2025
Professional grade switching. This QGLC provides the long-haul capacity our regional network requires for high-availability services. Very satisfied with the results and durability.
The ASR5K-041GE-LX-K9 is a Cisco QGLC 4-port Gigabit Ethernet line card for ASR 5000/5500 series, featuring 1000BASE-LX/LH SFPs for up to 10 km single-mode fiber connectivity.
The ASR5K-041GE-LX-K9 is supported in Cisco ASR 5001, 5002, 5004, 5010, 5020 and ASR 5500 series chassis with an available Gigabit Ethernet line-card slot.
Using 1000BASE-LX/LH SFPs, the ASR5K-041GE-LX-K9 supports single-mode fiber distances up to 10 km over standard SMF at 1310 nm wavelength.
Power down or hot-swap the ASR chassis per Cisco guidelines, slide the ASR5K-041GE-LX-K9 into an available GE slot, secure the handle, then power up and verify with 'show card'.
The ASR5K-041GE-LX-K9 requires Cisco IOS XR 4.2.1 or later to enable full Gigabit Ethernet LX functionality and feature support.
The ASR5K-041GE-LX-K9 delivers up to 4 Gbps aggregated line-rate throughput across its four Gigabit Ethernet ports.
Typical power draw for the ASR5K-041GE-LX-K9 is approximately 20 W under full load, complying with ASR 5000 series power-budget guidelines.
Operating temperature: 0–40 °C; relative humidity: 5–90% non-condensing. Storage: –40–70 °C. The card meets Cisco environmental standards for data-center deployment.
Yes. The ASR5K-041GE-LX-K9 supports IEEE 802.1Q VLAN tagging and QinQ stacking for advanced traffic segmentation and carrier-grade networking.
No. The ASR5K-041GE-LX-K9 operates under the base IOS XR license set; no extra feature license is needed for standard Gigabit Ethernet LX ports.
The line card supports IPv4, IPv6, MPLS, QoS, NetFlow, and advanced routing features available in the ASR 5000 series software.
Yes. The ASR5K-041GE-LX-K9 coexists with copper-based and other fiber line cards in the ASR 5000/5500 chassis, enabling hybrid Gigabit Ethernet deployments.
Use CLI: 'configure', then 'interface GigabitEthernet <slot>/<subslot>/<port>'. Assign IP or switchport mode, then 'no shutdown' to activate the interface.
Verify SFP seating, check fiber continuity, use 'show interfaces' for status, inspect SFP LED indicators, and confirm IOS XR compatibility and port configuration.
The ASR5K-041GE-LX-K9 is covered under Cisco’s limited lifetime hardware warranty, with options for Cisco Smart Net Total Care and software support contracts.
Ideal for enterprise edge, data-center aggregation, mobile backhaul, and service-provider access networks requiring long-haul Gigabit Ethernet connectivity.
The LX version uses 1000BASE-LX/LH SFPs for single-mode fiber up to 10 km; the SR version uses 1000BASE-SR SFPs for multimode fiber up to 550 m.
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