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CR52-P21-40x10/100/1000Base-TX-RJ45
40-Port 10/100/1000Base-RJ45 Flexible Card(Occupy two sub-sl...
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CR52-P21-40x10/100/1000Base-TX-RJ45 is an advanced Ethernet module engineered to deliver reliable connectivity with support for 10/100/1000Base-TX speeds via standard RJ-45 connectors. This module is designed to meet the rigorous demands of modern networks by offering high-performance data transmission and is ideal for integration with routers, switches, and servers.
Optimized for expanding data center capacity and upgrading server network interfaces, the CR52-P21-40x10/100/1000Base-TX-RJ45 features a modular form factor for straightforward installation. It supports essential networking protocols and key features such as auto-negotiation, Wake-on-LAN, jumbo frames, and QoS, ensuring robust, high-speed network performance across various enterprise environments.
CR52-P21-40x10/100/1000Base-TX-RJ45 price is is available on request. Get immediate quote.
Request bulk order quote for CR52-P21-40x10/100/1000Base-TX-RJ45 for additional pricing. Browse the full Netengine Series Router Module/Ne40E Series Service Router Module series or explore all Huawei products.
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| CR52-P21-40x10/100/1000Base-TX-RJ45 |  CR5D0MPUB460 |  CR5D0L4XFA7B |  CR5D0SRUA470 | CR52-P20-12x100/1000Base-X-SFP | |
|---|---|---|---|---|---|
| Compatibility | Cisco / Juniper / Arista / Dell / HP | Cisco, Juniper, Arista, Dell, HP | Cisco, Juniper, Arista, Dell, HP | Cisco, Juniper, Arista, Dell, HP | Cisco / Juniper / Arista / Dell / HP |
| Connector Type | RJ-45 | SFP+ | SFP+ | SFP+ | SFP |
| Data Rate | 10/100/1000Mbps | 10G | 10G | 10G | 100Mbps/1Gbps |
| Form Factor | Modular | PCIe | PCIe | PCIe | Modular |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Interface Ports | Ethernet | SFP+ | Ethernet | SFP+ | SFP |
| Max Speed | 1Gbps per port | 10Gbps | 10Gbps | 10Gbps | 1Gbps |
| Module Type | Ethernet Module | Ethernet | Ethernet | Ethernet | SFP |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Product Name | CR52-P21-40x10/100/1000Base-TX-RJ45 | CR5D0MPUB460 High-Performance Ethernet Module | CR5D0L4XFA7B 10Gbps Ethernet PCIe Network Card | CR5D0SRUA470 High-Speed Ethernet Module | CR52-P20-12x100/1000Base-X-SFP |
| Product Type | Network Module / Network Card | Network Card | Network Module / Network Card | Network Module / Network Card | Network Module / Network Card |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Features | 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 | Auto-negotiation / QoS / Jumbo Frames |
| Supported Protocols | TCP/IP | TCP/IP | TCP/IP, iSCSI | TCP/IP | TCP/IP, iSCSI |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
High density RJ45 card works reliably. Ideal for access layer expansion.
Ports negotiate quickly and remain stable.
Good performance with mixed speed devices.
Reliable copper connectivity for enterprise environments.
No overheating or link issues observed.
Solid option for large scale copper deployments.
The CR52-P21 is a 40-port 10/100/1000Base-TX RJ45 Flexible Card that occupies two sub-slots on Cisco routers, delivering high-density Gigabit Ethernet connectivity.
The CR52-P21 is compatible with Cisco ASR 9000 Series, NCS, and CRS router platforms that feature two-slot flexible card bays; consult Cisco’s hardware installation guide for exact chassis support.
Power down the router, remove the blank sub-slot covers, insert the CR52-P21 into two adjacent sub-slots, secure it with the provided screws, then power up—the router will auto-detect the module.
The CR52-P21 delivers 40 Gigabit Ethernet ports at line-rate, supporting up to 1 Gbps per port with an aggregate non-blocking throughput of up to 80 Gbps.
Yes, all 40 ports on the CR52-P21 support IEEE 802.3u auto-negotiation and full-duplex operation, with backward compatibility to 10/100 Mbps Ethernet.
Use Category 5e or Category 6 UTP cables with RJ45 connectors, with maximum segment lengths capped at 100 meters per IEEE 802.3 standards.
The CR52-P21 occupies two adjacent flexible module sub-slots within the router chassis to provide its 40 RJ45 Gigabit ports.
No, the CR52-P21 is not hot-swappable; you must power down the router or enter maintenance mode before inserting or removing the module to ensure system integrity.
Each RJ45 port on the CR52-P21 supports full-duplex 1 Gbps, delivering an aggregate throughput of up to 80 Gbps across all 40 ports.
Yes, the CR52-P21 supports IEEE 802.1Q VLAN tagging, IEEE 802.3ad link aggregation (LACP), Spanning Tree Protocol variants, and QoS mechanisms for robust Layer 2 switching.
The CR52-P21 operates at 0 °C to 40 °C (32 °F to 104 °F) with 5%–85% non-condensing relative humidity; refer to the datasheet for altitude and shock/vibration limits.
Under full load, the CR52-P21 typically consumes around 35 Watts; actual power draw varies based on port utilization and router configuration.
Verify the port LEDs, test cable continuity, confirm speed/duplex settings via the router CLI, and review interface counters and system logs for errors or mismatches.
Cisco offers a limited lifetime hardware warranty on the CR52-P21, with replacement coverage; extended support and advanced replacement services are available through Cisco Smart Net Total Care.
You can order the CR52-P21 and spare components from authorized Cisco resellers, the Cisco e-store, or by contacting Cisco sales directly for quotes and lead times.
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