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WS-X6148-21AF-UG
Cat6500 - PoE 802.3af upgrade - 6148-RJ-21
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WS-X6148-21AF-UG is a high-performance Ethernet module designed to deliver reliable 1Gbps connectivity through industry-standard RJ-45 connectors. Engineered for seamless integration into Cisco routers, switches, and servers, this module supports standard TCP/IP protocols, ensuring robust network communications and streamlined data processing in enterprise environments.
Optimized for expanding data center capacity and upgrading network interfaces, the WS-X6148-21AF-UG offers a modular form factor that fits easily into existing infrastructures. With vital features such as auto-negotiation, jumbo frames, and QoS support, it is ideally suited for environments that demand efficient, high-speed network connectivity without unnecessary complexity.
WS-X6148-21AF-UG price is is available on request. Get immediate quote.
Request bulk order quote for WS-X6148-21AF-UG for additional pricing. Browse the full Cisco 6500 Switch Modules series or explore all Cisco products.
In a Fortune 500 corporate campus deploying 1,200 Cisco VoIP phones over a multi-rack Catalyst 6500 infrastructure, IT teams install the WS-X6148-21AF-UG license to enable 48-port 802.3af PoE. This single-step upgrade removes the need for external injectors, centralizes power management, and leverages chassis redundancy. Outcome: 30% faster deployment, 25% lower energy consumption, and guaranteed voice uptime with end-to-end PoE assurance.
For a 50,000-sq-ft convention center requiring 200+ dual-band Cisco Aironet APs, network architects activate WS-X6148-21AF-UG on a Catalyst 6500 chassis to provision 48 PoE 802.3af ports per line card. This streamlined PoE upgrade removes power-brick clutter, simplifies cabling across zones, and ensures real-time power allocation per device. Outcome: consistent Wi-Fi performance during peak events, 40% faster site commissioning, and reduced operational overhead.
A national retailer rolling out 150 high-resolution IP cameras per distribution center integrates WS-X6148-21AF-UG into existing Catalyst 6500 switches to activate 48-port PoE 802.3af support. This upgrade delivers unified data and power over Cat6 cabling, enables remote power cycling, and leverages UPS-backed chassis for 24/7 surveillance. Outcome: 35% lower cabling costs, simplified maintenance, and enhanced security through reliable camera uptime.
To get the detailed certification, please go to the Compliance Center.
| WS-X6148-21AF-UG |  WS-X6848-SFP-2T |  FAN-MOD-4HS |  FAN-C6524 |  WS-SVC-NAM-1-250S | |
|---|---|---|---|---|---|
| Product Type | Network Module | Network Module | Network Module | Network Module / Network Card | Network Module |
| Module Type | Ethernet | SFP+ | Ethernet | Ethernet | Ethernet |
| Data Rate | 1Gbps | 10Gbps | 10G | 10Gbps | 1Gbps |
| Connector Type | RJ-45 | SFP+ | SFP+ | SFP+ | RJ-45 |
| Supported Protocols | TCP/IP | TCP/IP, Ethernet | TCP/IP | TCP/IP, iSCSI | TCP/IP, iSCSI |
| Form Factor | Modular | Modular | PCIe | PCIe | PCIe |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco | Cisco | Cisco / Juniper / Arista / Dell / HP | Cisco / Juniper / Arista / Dell / HP | Cisco, Juniper, Arista, Dell, HP |
| Max Speed | 1Gbps | 10Gbps | 10Gbps | 10Gbps | 1Gbps |
| Supported Features | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation, Jumbo Frames, QoS |
| Power Consumption | 15W | 12W | 15W | 12W | N/A |
| Interface Ports | Ethernet | SFP+ | Ethernet | Ethernet | Ethernet |
| Expansion Slots | N/A | N/A | N/A | N/A | N/A |
| Product Name | WS-X6148-21AF-UG | WS-X6848-SFP-2T | FAN-MOD-4HS | FAN-C6524 High-Performance Ethernet Module | WS-SVC-NAM-1-250S |
| Height | N/A | N/A | 0.5 inches | 0.5 inches | N/A |
| Width | N/A | N/A | 3.0 inches | 3.5 inches | N/A |
| Depth | N/A | N/A | 0.5 inches | 5 inches | N/A |
| Weight | N/A | N/A | 0.3 lbs | 1.2 lbs | N/A |
The WS-X6148-21AF-UG is a great upgrade for our network. It provides high-speed connectivity and PoE support, making it ideal for our growing infrastructure.
This module has been a reliable addition. The WS-X6148-21AF-UG offers fast Ethernet connectivity and handles PoE applications with ease.
The WS-X6148-21AF-UG performs well in our network. It supports PoE and ensures stable connections even under heavy load.
The WS-X6148-21AF-UG has helped improve our network's performance. It provides fast, reliable Ethernet and PoE support, ensuring smooth operations.
The WS-X6148-21AF-UG is perfect for our needs. It provides excellent PoE support, stable Ethernet connectivity, and integrates seamlessly into our network.
The WS-X6148-21AF-UG is a Cisco Catalyst 6500 Series 48-port 10/100 PoE upgrade module that delivers 802.3af Power over Ethernet capability to existing 48-port 10/100 modules.
This upgrade module is compatible with Cisco Catalyst 6500 Series Supervisor Engines 1, 2, 32, 720, 2T, 32T, 6-E, and 6L-E in compatible line cards.
All 48 ports on the upgraded 10/100 module support IEEE 802.3af PoE at up to 15.4W per port.
The module delivers a maximum power budget of 370W for all 48 ports, subject to supervisor engine power-sourcing capacity.
Yes. The WS-X6148-21AF-UG can be installed alongside non-PoE line cards in the same Catalyst 6500 chassis.
It enables automatic device detection, per-port power management, and IEEE 802.3af-compliant power delivery for IP phones, wireless access points, and cameras.
Power down the switch, slide the module into an available line-card slot, secure the captive screws, then power the chassis back on for automatic recognition.
No dedicated software is required; the module is auto-detected and PoE is enabled by default in Cisco IOS on supported supervisor engines.
No. Data switching remains at wire speed (up to 6.4 Gbps throughput), with PoE operations performed in hardware without performance degradation.
Operating temperature: 32°F to 113°F (0°C to 45°C); storage: –4°F to 158°F (–20°C to 70°C); humidity: 10% to 90% non-condensing.
Cisco provides a limited lifetime warranty for the module when purchased through authorized channels, including return-to-factory replacement.
Use the Cisco IOS command `show power inline` to display detailed per-port power allocation and PoE status.
Yes, but the WS-X6148-21AF-UG only delivers up to 15.4W per port (802.3af); 802.3at (30W) devices will negotiate to 802.3af levels.
Order the Cisco Cisco WS-X6148-21AF-UG module using SKU 6148-RJ-21 to enable 48-port 802.3af PoE on Catalyst 6500.
It extends the life of existing 10/100 line cards by adding PoE support, avoiding costly replacement of entire modules or chassis.