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WS-X6148-21AF
Cat6500 PoE 802.3af 10/100, 48 port (RJ21) line card
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WS-X6148-21AF is an advanced Ethernet module engineered to deliver high-performance network connectivity within modular switch systems. It supports data rates of up to 1Gbps using robust RJ-45 connectors and is designed for seamless integration with compatible enterprise routers, switches, and servers, making it an ideal solution for expanding data center capacity and upgrading network infrastructures.
Built with a modular form factor for easy installation, WS-X6148-21AF reliably handles TCP/IP traffic, ensuring stable and efficient data transfers. Its design and supported features such as auto-negotiation, jumbo frames, and QoS make it a practical choice for organizations that demand scalability and enhanced network performance.
WS-X6148-21AF price is $1,012.00, a 87.3% saving from the Cisco list price of $7,995.00. WS-X6148-21AF is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for WS-X6148-21AF for additional pricing. Browse the full Cisco 6500 Switch Modules series or explore all Cisco products.
A large university deploys the Cisco WS-X6148-21AF-Cat6500 PoE 802.3af 10/100, 48-port (RJ21) line card in its core switches to power and connect 1,200 VoIP handsets across four buildings. By centralizing power over Ethernet and leveraging the RJ21 bulk-cabling interface, IT reduces rack space by 40% and cuts installation time by 60%, ensuring consistent voice quality and streamlined network management.
A financial services firm upgrades its Cat6500 chassis with the WS-X6148-21AF PoE 802.3af line card to support 48 access points per floor via RJ21 trunking. This high-density setup delivers reliable 100 Mbps connectivity and up to 15.4 W per port, enabling seamless roaming and capacity for video conferencing. Outcome: 30% faster Wi-Fi onboarding, simplified cabling, and centralized PoE budgeting for predictable operational costs.
A metropolitan transit authority installs the WS-X6148-21AF-Cat6500 PoE 802.3af 10/100, 48-port (RJ21) line card to power 48 outdoor IP cameras along a subway platform. The solution delivers consistent PoE power, fault tolerance via hot-swappable modules, and rapid RJ21 maintenance. Benefit: 24/7 video uptime, 50% reduction in power cabling complexity, and centralized monitoring for improved security compliance.
To get the detailed certification, please go to the Compliance Center.
 WS-X6148-21AF |  SPA-2X1GE |  WS-SUP720-3BXL |  WS-X6708-10G-3C |  WS-X6066-SLB-APC | |
|---|---|---|---|---|---|
| Product Type | Network Module | Network Module | Supervisor Engine Module | Network Module | Network Module / Network Card |
| Module Type | Ethernet | Ethernet | Supervisor Engine | Ethernet | Ethernet |
| Data Rate | 1Gbps | 1G | N/A | 10Gbps | 10Gbps |
| Connector Type | RJ-45 | RJ-45 | Integrated Backplane Connector | SFP+ | SFP+ |
| Supported Protocols | TCP/IP | TCP/IP | TCP/IP / MPLS / Routing Protocols | TCP/IP | TCP/IP |
| Form Factor | Modular | PCIe | Modular | 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 | Cisco / Juniper / Arista / Dell / HP | Cisco Catalyst 6500 Series | Cisco | Cisco / Juniper / Dell / HP |
| Max Speed | 1Gbps | 1Gbps | N/A | 10Gbps | 10Gbps |
| Supported Features | Auto-negotiation / Jumbo Frames / QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | High Availability / Redundancy / Advanced Routing / QoS | Auto-negotiation / Jumbo Frames / QoS | Auto-negotiation / Jumbo Frames / QoS |
| Power Consumption | 15W | N/A | N/A | N/A | 15W |
| Interface Ports | Ethernet | Ethernet | N/A | SFP+ | Ethernet |
| Expansion Slots | N/A | N/A | N/A | N/A | N/A |
| Product Name | WS-X6148-21AF | SPA-2X1GE | WS-SUP720-3BXL Supervisor Engine 720 | WS-X6708-10G-3C Ethernet Module | WS-X6066-SLB-APC |
| Height | N/A | N/A | N/A | N/A | N/A |
| Width | N/A | N/A | N/A | N/A | N/A |
| Depth | N/A | N/A | N/A | N/A | N/A |
| Weight | N/A | N/A | N/A | N/A | N/A |
The WS-X6148-21AF is a reliable module for expanding our network. It supports PoE and provides high-speed Ethernet connectivity with excellent performance.
This module has been a game-changer. The WS-X6148-21AF offers fast, stable Ethernet connectivity with power over Ethernet support.
The WS-X6148-21AF module is reliable and easy to integrate. It delivers high-speed Ethernet and PoE support, ensuring smooth network operations.
Great performance with the WS-X6148-21AF. It handles our network's growing demands and offers seamless PoE support with fast Ethernet connectivity.
The WS-X6148-21AF module has significantly improved our network. It provides fast, stable Ethernet and PoE support, making it perfect for our infrastructure.
The Cisco WS-X6148-21AF is a 48-port 10/100 Mbps RJ21 line card for Catalyst 6500 Series switches, supporting IEEE 802.3af Power over Ethernet for IP phones, wireless APs, and other PoE devices.
The WS-X6148-21AF is compatible with Cisco Catalyst 6506-E and 6509-E chassis when paired with PoE-capable supervisor engines such as Supervisor Engine 2T or 720-10G.
It delivers 48 x 10/100 Mbps Ethernet ports via an RJ21 connector, ideal for high-density access-layer deployments requiring PoE.
This line card supports IEEE 802.3af PoE, supplying up to 15.4 watts per port to compliant devices.