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SPA-4X1FE-TX-V2
Cisco 4-Port Fast Ethernet (TX) Shared Port Adapter
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SPA-4X1FE-TX-V2 is a high-performance Ethernet module engineered for reliable 1Gbps connectivity in demanding network environments. Designed with a standard RJ-45 connector and a PCIe form factor, this network card is ideally suited for routers, switches, and servers, ensuring seamless integration into existing infrastructures while supporting essential protocols like TCP/IP.
Optimized for expanding data center capacity and upgrading server network interfaces, SPA-4X1FE-TX-V2 delivers robust features such as auto-negotiation, Wake-on-LAN, jumbo frames, and QoS for enhanced traffic management. Its design ensures operational reliability across a wide temperature range, making it a trusted choice for mission-critical applications in modern network deployments.
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A mid-sized retailer deploys the SPA-4X1FE-TX-V2 Cisco 4-Port Fast Ethernet (TX) Shared Port Adapter on its ISR 4000 router to terminate four separate ISP circuits for primary and secondary Internet access. By configuring dynamic load-balancing and automated failover across the four Fast Ethernet links, the IT team ensures uninterrupted e-commerce transactions and real-time POS synchronization. Outcome: 99.99% branch uptime, 30% reduction in dedicated backup-link costs and streamlined WAN management.
An enterprise virtualization team integrates the SPA-4X1FE-TX-V2 module into a Cisco ISR 4321 to aggregate management, vMotion, guest and storage networks over four tagged Fast Ethernet ports. Each port is assigned to a dedicated VLAN trunk, isolating traffic streams and improving throughput for VMware ESXi clusters. Outcome: 40% reduction in physical NICs, simplified network provisioning and enhanced security posture through granular segmentation.
A small professional services firm installs the SPA-4X1FE-TX-V2 adapter on its ISR 4451 to deliver separate Fast Ethernet uplinks for IP phones, video conferencing and data traffic. Leveraging Cisco IOS QoS policies per port, voice and video streams receive priority forwarding while data flows remain protected. Outcome: crystal-clear call quality, 25% fewer customer support tickets and a consolidated cabling footprint for unified communications.
To get the detailed certification, please go to the Compliance Center.
 SPA-4X1FE-TX-V2 |  FAN-C6524 |  WS-SUP720-3BXL |  7600-SIP-400 |  VS-S2T-10G | |
|---|---|---|---|---|---|
| Product Type | Network Card | Network Module / Network Card | Supervisor Engine Module | Network Module / Network Card | Network Module |
| Module Type | Ethernet | Ethernet | Supervisor Engine | Ethernet | Ethernet |
| Data Rate | 1Gbps | 10Gbps | N/A | 10Gbps | 10Gbps |
| Connector Type | RJ-45 | SFP+ | Integrated Backplane Connector | SFP+ | SFP+ |
| Supported Protocols | TCP/IP | TCP/IP, iSCSI | TCP/IP / MPLS / Routing Protocols | TCP/IP | TCP/IP |
| Form Factor | PCIe | PCIe | Modular | PCIe | Modular |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 50°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 70°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | N/A | 3.3V | 3.3V |
| Compatibility | Cisco / Juniper / Arista / Dell / HP | Cisco / Juniper / Arista / Dell / HP | Cisco Catalyst 6500 Series | Cisco / Juniper / Arista / Dell / HP | Routers, Switches, Servers |
| Max Speed | 1Gbps | 10Gbps | N/A | 10Gbps | 10Gbps |
| Supported Features | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation, Jumbo Frames, QoS | High Availability / Redundancy / Advanced Routing / QoS | Auto-negotiation / Jumbo Frames / QoS | Auto-negotiation, Jumbo Frames, QoS |
| Power Consumption | 6.8W | 12W | N/A | 15W | N/A |
| Interface Ports | Ethernet | Ethernet | N/A | Ethernet / SFP+ | SFP+ |
| Expansion Slots | N/A | N/A | N/A | PCIe | N/A |
| Product Name | SPA-4X1FE-TX-V2 | FAN-C6524 High-Performance Ethernet Module | WS-SUP720-3BXL Supervisor Engine 720 | 7600-SIP-400 | VS-S2T-10G |
| Height | 1.73 inches | 0.5 inches | N/A | 1.5 inches | N/A |
| Width | 3.44 inches | 3.5 inches | N/A | 3.4 inches | N/A |
| Depth | 0.75 inches | 5 inches | N/A | 8.0 inches | N/A |
| Weight | 0.85 lbs | 1.2 lbs | N/A | 1.2 lbs | N/A |
The SPA-4X1FE-TX-V2 is a great solution for adding fast Ethernet ports to our network. It integrates easily and provides reliable, high-speed connectivity.
This module provides exceptional value. The SPA-4X1FE-TX-V2 delivers stable performance, supports fast data transfer, and integrates well into our infrastructure.
The SPA-4X1FE-TX-V2 is highly reliable. It performs flawlessly, providing fast and stable Ethernet connectivity across our network without issues.
The SPA-4X1FE-TX-V2 is a reliable solution for expanding our network's Ethernet capabilities. It delivers fast performance and integrates easily.
Efficient and stable. The SPA-4X1FE-TX-V2 supports high-speed Ethernet connectivity and has improved our network performance significantly.
The Cisco SPA-4X1FE-TX-V2 is a 4-port Fast Ethernet (TX) Shared Port Adapter designed for Cisco 2600 and 2800 series routers, delivering reliable 100 Mbps connectivity for WAN and LAN applications.
This adapter provides four 10/100 Mbps Fast Ethernet (TX) ports with auto-sensing full- and half-duplex operation to match network devices and maximize throughput.
The SPA-4X1FE-TX-V2 is compatible with Cisco 2600, 2600XM, 2800, and 2800XM series integrated services routers with an available SPA slot.
You need standard Category 5 (Cat 5) or better unshielded twisted-pair (UTP) Ethernet cables terminated with RJ-45 connectors for each Fast Ethernet port.