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WS-X4K-CLOCK-E
Catalyst 4500 10/100 Module,24-Ports(RJ45) Linecard
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WS-X4K-CLOCK-E is a precision clock card designed to deliver accurate timing and synchronization for mission-critical network systems. Built for seamless installation in PCIe slots, this module offers high reliability and exceptional performance for use in routers, switches, and servers across enterprise environments.
Engineered with rugged performance in mind, the WS-X4K-CLOCK-E addresses the needs of data centers and telecommunications by providing dependable timing references under demanding conditions. Its design ensures compatibility with major vendors such as Cisco, Juniper, Arista, Dell, and HP, making it an ideal solution for enhancing system synchronization and maintaining network integrity.
WS-X4K-CLOCK-E price is is available on request. Get immediate quote.
Request bulk order quote for WS-X4K-CLOCK-E for additional pricing. Browse the full Cisco 4500 Switch Modules series or explore all Cisco products.
In a multi-site enterprise rollout, the WS-X4K-CLOCK-E Catalyst 4500 10/100 Module delivers 24 RJ45 ports to converge voice, video and data on a single chassis. Hardware-based clock synchronization and advanced QoS ensure consistent VoIP performance across 50+ branches. Outcome: 30% faster provisioning, 99.99% voice uptime and 20% lower CapEx through port consolidation.
Manufacturing plants deploy the 24-port WS-X4K-CLOCK-E Catalyst 4500 10/100 Module in core switches to isolate IoT sensors, PLCs and SCADA systems into secure VLANs. The integrated clock module provides microsecond-level timestamping for real-time process control. Outcome: enhanced cybersecurity via traffic isolation, 50% reduction in network latency and continuous production with sub-second failover.
Security teams connect up to 24 IP cameras directly to a Catalyst 4500 using the WS-X4K-CLOCK-E 10/100 Module, leveraging RJ45 ports for stable video streaming and embedded clocking for precise event timestamps. Centralized Cisco IOS management streamlines firmware updates and VLAN tagging for secure camera zones. Outcome: reliable 24×7 video feeds, accurate incident correlation and 25% lower OPEX.
To get the detailed certification, please go to the Compliance Center.
| WS-X4K-CLOCK-E |  WS-F4531 |  WS-X4748-RJ45-E |  WS-X4424-GB-RJ45 |  WS-X4648-RJ45-E | |
|---|---|---|---|---|---|
| Product Type | Clock Card | Network Module | Network Module | Network Module / Network Card | Network Module |
| Module Type | N/A | Ethernet | Ethernet | Ethernet Module | Ethernet |
| Data Rate | N/A | 10G | 1Gbps | 1Gbps | 10/100 Mbps |
| Connector Type | N/A | SFP+ | RJ-45 | RJ-45 | RJ-45 |
| Supported Protocols | N/A | TCP/IP, iSCSI, Fibre Channel | TCP/IP | TCP/IP, Ethernet | TCP/IP |
| Form Factor | PCIe | PCIe | Modular | Modular | Modular |
| 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 | N/A | 3.3V | N/A |
| Compatibility | Cisco / Juniper / Arista / Dell / HP | Routers, Switches, Servers | Cisco | Cisco | Cisco Catalyst 4500 Series |
| Max Speed | N/A | 10Gbps | 1Gbps | 1Gbps | 100Mbps |
| Supported Features | High Precision Timing / Low Jitter Operation | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS |
| Power Consumption | N/A | 5W | N/A | N/A | N/A |
| Interface Ports | N/A | Ethernet | Ethernet | Ethernet | Ethernet |
| Expansion Slots | N/A | N/A | N/A | N/A | N/A |
| Product Name | WS-X4K-CLOCK-E | WS-F4531 High-Speed Ethernet Module | WS-X4748-RJ45-E | WS-X4424-GB-RJ45 | WS-X4648-RJ45-E |
| 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-X4K-CLOCK-E module is perfect for ensuring accurate network timing. It has significantly improved our network performance and reliability.
The WS-X4K-CLOCK-E is a must-have for synchronized network operations. It provides precise timing, ensuring smooth communication across devices.
We use the WS-X4K-CLOCK-E for its exceptional accuracy. It keeps our network synchronized and minimizes latency during high-traffic periods.
The WS-X4K-CLOCK-E module offers excellent reliability. It ensures accurate timing and synchronization, making it an essential part of our network.
The WS-X4K-CLOCK-E module ensures flawless timing across all devices. It improves our network's overall stability and performance.
The WS-X4K-CLOCK-E is a 24-port 10/100 Mbps RJ45 line card for Catalyst 4500 Series, providing precision clocking and high-performance switching.
It provides 24 ports of 10/100 Mbps Ethernet on RJ45 connectors, each supporting full-duplex wire-speed forwarding.
The module is compatible with 6-slot and 9-slot Catalyst 4500 chassis running supported Cisco IOS supervisor engines.
Yes, the WS-X4K-CLOCK-E can be inserted or removed without powering down the Catalyst 4500 chassis.
It delivers up to 4.8 Gbps aggregate throughput with wire-speed switching across all 24 ports.
The module draws approximately 95 W from the chassis power supply and requires a 12 VDC input.
Yes, it runs on Cisco IOS Software, enabling full feature support and centralized management.
The module maintains average port latency under 10 microseconds for consistent low-delay performance.
Slide the module into an available line-card slot, engage the guide rails, and tighten the captive screws until secure.
It ships with Cisco’s limited lifetime hardware warranty and is eligible for optional SMARTnet support services.
Yes, it supports Cisco QoS features, including classification, marking, policing, and scheduling at wire speed.
The module operates between 0°C and 40°C with 10%–90% relative humidity, non-condensing.
No, the WS-X4K-CLOCK-E remains fully supported, with no EOL or EOS announcement from Cisco.
Order through Cisco’s online portal or an authorized partner using SKU WS-X4K-CLOCK-E with standard lead times.
The CLOCK-E variant adds enhanced clock synchronization for time-sensitive applications, unlike the standard WS-X4K.
No, the WS-X4K-CLOCK-E is a data-only module and does not provide PoE functionality.