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FLS-A901-4=
Cisco ASR 901 10G Router - 4 Flex Port GE Upgrade - Physical
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FLS-A901-4=-Cisco ASR 901 10G Router - 4 Flex Port GE Upgrade - Physical is a high-performance hardware upgrade designed to enhance your existing Cisco ASR 901 router with advanced 10G processing and four flexible GE ports. This physical upgrade integrates seamlessly into Cisco’s network management ecosystem – complementing a range of Cisco operating systems and virtualization technologies – and is ideally suited for enterprise environments and IT administrators seeking robust, scalable connectivity.
Engineered as a plug‐in module, this upgrade supports a streamlined deployment process with no activation required and is delivered as physical media, eliminating the need for digital key distribution. Its OEM-focused lifecycle provides a reliable, long-term solution for businesses, SMBs, and advanced IT management setups that depend on consistent network performance and secure integration with existing infrastructure.
FLS-A901-4= price is $823.00, a 45.1% saving from the Cisco list price of $1,500.00. FLS-A901-4= is in stock and available for next-day dispatch. (terms applied)
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| FLS-A901-4= |  SW-CCM-UL-7975 |  LIC-CM-DL-10= |  ASA5500-SC-10 |  L-ASACSC20-500U2Y= | |
|---|---|---|---|---|---|
| Activation Type | Not Required | Online Activation | Online Activation | Online Activation | Online Activation |
| Bit Version | N/A | N/A | 64-bit | N/A | N/A |
| Cloud Integration | N/A | N/A | N/A | N/A | N/A |
| Compliance Certifications | N/A | N/A | N/A | N/A | N/A |
| Delivery Method | Physical Media | Digital Key | Digital Key | Digital Key | Digital Key |
| Device Count | 1 Device | 1 Device | N/A | 1 Device | 1 Device |
| ESD (Electronic Software Delivery) | No | Yes | Yes | Yes | Yes |
| Language Support | N/A | English | English | English | English |
| License Duration | N/A | Lifetime | Lifetime | Lifetime | 2 Years |
| License Key Included | No | Yes | Yes | Yes | Yes |
| License Type | N/A | Perpetual | Volume | Perpetual | Subscription |
| Platform Compatibility | N/A | N/A | Cross-Platform | N/A | N/A |
| Product Name | Cisco ASR 901 10G Router - 4 Flex Port GE Upgrade - Physical | SW-CCM-UL-7975-CUCM 3.X/4.X RTU LICS FOR SINGLE IP PHONE 7975 | Cisco Unified CM Device License For ELD - 10 Units | ASA5500-SC-10-ASA5500-SC-10 ASA 5500 10 Security Contexts License | Cisco ASA 5500 Content Security License L-ASACSC20-500U2Y |
| Product Region | Global | Global | Global | Global | Global |
| Product Type | Hardware Upgrade | Software License | Software License | Software License | Software License |
| Renewable | N/A | N/A | N/A | N/A | Yes |
| Software Category | Network Management | Collaboration | Collaboration | Security | Security |
| Software Format | Physical | Downloadable | Downloadable | Downloadable | Downloadable |
| Support Included | Vendor Support Required | Vendor Support Required | Yes | Vendor Support Required | Yes |
| Use Case | Enterprise | Enterprise | Enterprise | Enterprise | Enterprise |
| User Count | N/A | 1 User | N/A | N/A | 100+ Users |
No-nonsense physical upgrade. The 4 Flex Port GE kit is built to last and integrates seamlessly with the ASR 901 chassis. Reliable performance for years.
A solid, professional upgrade. The physical ports are high quality and provide the consistent connectivity our cell site routers require. Highly recommended.
Excellent build quality. The port upgrade was a straightforward physical installation and has provided 100% uptime for our access network nodes.
Steady and dependable. The Flex Port upgrade has given us the extra capacity we needed without any hardware issues. Great for long-term deployments.
High performance and robust. These ports handle high-speed data effortlessly. A very solid investment for any carrier network infrastructure.
The Cisco ASR 901 10G Router is a fixed, high-speed aggregation platform featuring two built-in SFP+ 10G ports and a 4-port Gigabit Ethernet Flex module for scalable service provider or enterprise edge deployments.
The SKU for the Cisco ASR 901 10G Router with the 4 Flex Port GE upgrade is FLS-A901-4=.
The 4 Flex Port GE upgrade adds four Gigabit Ethernet interfaces, enabling flexible port density, simplified network expansion, and optimized bandwidth allocation without a full chassis replacement.
The ASR 901 delivers up to 10 Gbps of aggregate throughput and up to 32 million packets per second (mpps), ensuring low-latency forwarding for demanding applications.
Out of the box, the ASR 901 includes two SFP+ 10G ports; the optional 4-port Flex Port GE module supports both copper and fiber Gigabit Ethernet transceivers.
This router is ideal for service provider aggregation, metro Ethernet edge, and enterprise WAN access, offering advanced routing, MPLS, QoS, and security features.
The 4 Flex Port GE upgrade is a physical line card that installs directly into the ASR 901 chassis, providing four additional Gigabit Ethernet ports.
Power off the ASR 901, slide the Flex Port GE module into the designated slot, secure it with the provided screws, and then power the router back on.
The ASR 901 operates on 100–240 VAC, draws a maximum of 75 W, and supports wide-range power sourcing in standard rack environments.
The ASR 901 measures 1.75” (H) × 13.0” (W) × 12.3” (D) and weighs approximately 4.6 lb, fitting a standard 1U rack space.
It supports IPv4/IPv6, MPLS, segment routing, BFD, advanced QoS, and traffic engineering for carrier-grade performance and reliability.
Yes, the ASR 901 offers stateful switchover with Modular Redundancy and In-Service Software Upgrade (ISSU) to maintain continuous network operations.
Cisco provides IP Base and IP Services licenses, allowing you to scale features for routing protocols, security, MPLS, and service chaining as needed.
Yes, you can simultaneously use the two SFP+ 10G ports and the four Gigabit Ethernet Flex ports to accommodate mixed-speed traffic requirements.
The ASR 901 operates at 0 °C to 45 °C, 5% to 85% non-condensing humidity, and complies with NEBS Level 3 for carrier-grade reliability.
Cisco offers a one-year limited hardware warranty on the ASR 901 and SMARTnet service plans for extended hardware replacement, software updates, and 24/7 technical support.