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Home Networking Network Switches Cisco WS-X5239-RJ21 36-Port Switching Module - RJ-21 Interface, QoS, High-Density Ethernet Expansion for Cisco Catalyst

Cisco WS-X5239-RJ21 36-Port Switching Module - RJ-21 Interface, QoS, High-Density Ethernet Expansion for Cisco Catalyst

Cisco WS-X5239-RJ21 36-Port Switching Module - RJ-21 Interface, QoS, High-Density Ethernet Expansion for Cisco Catalyst

Brand:

Cisco

Specifications

Product Overview:

The Cisco WS-X5239-RJ21 is a high-density 36-port Ethernet switching module, designed for use with Cisco Catalyst switches. Featuring a compact RJ-21 connector design, this module simplifies cabling in environments where space efficiency and rapid deployment are critical.
Equipped with advanced Quality of Service (QoS) capabilities, the WS-X5239-RJ21 enables granular traffic control, bandwidth prioritization, and improved network performance. It is an ideal solution for enterprises looking to scale their switching capacity while maintaining network performance and manageability.
This module is perfect for branch offices, campus networks, or data centers where high port density and traffic control are essential.

Features:

36-Port Ethernet Expansion Module – High-density design to maximize switch capacity
RJ-21 Connector Interface – Compact multi-port interface reduces cable clutter
Advanced QoS (Quality of Service) – Ensures application performance and traffic prioritization
High-Performance Switching – Optimized for Cisco Catalyst switches
Space-Saving Deployment – Simplified cable management with RJ-21 breakout
Ideal for High-Traffic Environments – Supports large-scale enterprise applications
Hot-Swappable Module – Enables live replacement without downtime
Cisco Catalyst Compatible – Seamlessly integrates with Catalyst 5000/5500 series
Reliable and Scalable – Built for enterprise-grade reliability and expansion

Specifications:

Product Model: Cisco WS-X5239-RJ21
Brand: Cisco Systems
Module Type: High-Density Ethernet Switching Module
Port Count: 36 Ethernet Ports
Connector Type: RJ-21 Telco-style interface (1 RJ-21 = 24 lines)
Port Speed: 10/100 Mbps Fast Ethernet
Interface Type: Multiport RJ-21 connector (with breakout cable)
Traffic Management: Advanced QoS (Quality of Service) capabilities
Switching Fabric Support: Compatible with Cisco Catalyst 5000/5500 platforms
Hot-Swappable: Yes – install/remove without system shutdown
Compliance Standards: IEEE 802.3 (Ethernet), IEEE 802.1p (QoS)
LED Indicators: Per-port status and activity (via chassis system)
Form Factor: Modular plug-in
Operating Temperature: 0°C to 40°C (32°F to 104°F)
Storage Temperature: -40°C to 70°C (-40°F to 158°F)
Humidity: 10% to 90% non-condensing
Dimensions: Standard Catalyst module size
Weight: Approx. 1.0 kg

Features

Brand:

Cisco

Warranty:

1 Year

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