United StatesName:
Added to cart 28 times recently
In stock - Ready to Ship
$7,995.00
$1,012.0087.3% off
Quantity:
Business price:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
WS-X6148-21AF
Cat6500 PoE 802.3af 10/100, 48 port (RJ21) line card
TRUSTED, TRIED, PROVEN
Inventory Delivered By
& Verified By
Solutions Powered By
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.
The WS-X6148-21AF can deliver a combined PoE budget of up to 740 watts, subject to installed power supplies and supervisor engine capacity.
It uses a single 50-pin RJ21 connector that aggregates 48 low-speed Ethernet ports into one modular interface.
Power down the chassis, slide the WS-X6148-21AF into an empty line-card slot, secure the retention bracket, restore power, and verify status via the console or show module command.
Use Cisco IOS commands such as interface range and power inline {auto | never | static max-wattage} to enable, disable, or set PoE priority per port.
Yes. Catalyst 6500 chassis support mixed line-card deployments as long as overall power and cooling requirements are met.
Run show power inline and show module commands in Cisco IOS to view real-time PoE allocation and per-port power consumption.
Operating temperature is 0 °C to 40 °C with 10%–85% non-condensing humidity, and it requires standard Cisco 6500 chassis cooling.
Cisco provides a limited lifetime warranty plus optional SMARTnet support for 24/7 hardware replacement and technical assistance.
Authorized Cisco partners and the Cisco online store sell certified WS-X6148-21AF line cards with full warranty and support coverage.
The WS-X6148-21AF delivers PoE via an RJ21 connector, whereas the WS-X6148-RJ45 uses 48 individual RJ45 ports without integrated PoE support.
Check power-supply status with show power inline, verify interface PoE settings, inspect cable integrity, and ensure attached devices comply with IEEE 802.3af.
Ensure your Catalyst 6500 runs Cisco IOS release 12.2(33)SXH or later; apply recommended firmware updates for full WS-X6148-21AF support and optimal PoE performance.