United States$5,000,000+
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M
Martin Keller
5
High density RJ45 card works reliably. Ideal for access layer expansion.
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
- Description:
- 40-Port 10/100/1000Base-RJ45 Flexible Card(Occupy two sub-slots)
- Rating:
Added to cart 28 times recently
- Availability:
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- Brand:
- Huawei
- GTIN:
- 886598034975
- Condition:
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CR52-P21-40x10/100/1000Base-TX-RJ45 Overview
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.
CR52-P21-40x10/100/1000Base-TX-RJ45 Specifications
- Product Type
- Network Module / Network Card
- Module Type
- Ethernet Module
- Data Rate
- 10/100/1000Mbps
- Connector Type
- RJ-45
- Supported Protocols
- TCP/IP
- Form Factor
- Modular
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco / Juniper / Arista / Dell / HP
- Max Speed
- 1Gbps per port
- Supported Features
- Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS
- Power Consumption
- N/A
- Interface Ports
- Ethernet
- Expansion Slots
- N/A
- Product Name
- CR52-P21-40x10/100/1000Base-TX-RJ45
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| CR52-P21-40x10/100/1000Base-TX-RJ45 |  CR5D0MPUB460 |  CR5D0L4XFA7B |  CR5D0SRUA470 |  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 |
| Module Type | Ethernet Module | Ethernet | Ethernet | Ethernet | SFP |
| Data Rate | 10/100/1000Mbps | 10G | 10G | 10G | 100Mbps/1Gbps |
| Connector Type | RJ-45 | SFP+ | SFP+ | SFP+ | SFP |
| Supported Protocols | TCP/IP | TCP/IP | TCP/IP, iSCSI | TCP/IP | TCP/IP, iSCSI |
| Form Factor | Modular | PCIe | PCIe | PCIe | 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 | 3.3V | 3.3V | 3.3V |
| 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 |
| Max Speed | 1Gbps per port | 10Gbps | 10Gbps | 10Gbps | 1Gbps |
| 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 |
| Power Consumption | N/A | 12W | 10W | 5W | N/A |
| Interface Ports | Ethernet | SFP+ | Ethernet | SFP+ | SFP |
| Expansion Slots | N/A | PCIe | N/A | N/A | SFP |
| 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 |
| Height | N/A | 0.35 inches | 1.5 inches | 1.5 inches | N/A |
| Width | N/A | 3.5 inches | 3.5 inches | 3.4 inches | N/A |
| Depth | N/A | 4.5 inches | 0.5 inches | 0.5 inches | N/A |
| Weight | N/A | 1.2 lbs | 0.7 lbs | 0.8 lbs | N/A |
Reviews & Ratings
S
Shawn Porter
5
Ports negotiate quickly and remain stable.
T
Timothy Vaughn
5
Good performance with mixed speed devices.
A
Alex Donovan
5
Reliable copper connectivity for enterprise environments.
R
Ross Caldwell
4
No overheating or link issues observed.
W
Wesley Hart
5
Solid option for large scale copper deployments.
Questions & Answers
What is the CR52-P21 40-Port 10/100/1000Base-TX RJ45 Flexible Card?
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.
Which Cisco routers support the CR52-P21 flexible card?
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.
How do I install the CR52-P21 card in a Cisco router?
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.
What performance can I expect from the CR52-P21 flexible card?
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.
Does the CR52-P21 support auto-negotiation and full-duplex mode?
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.
What cabling requirements exist for this 10/100/1000Base-TX card?
Use Category 5e or Category 6 UTP cables with RJ45 connectors, with maximum segment lengths capped at 100 meters per IEEE 802.3 standards.
How many sub-slots does the CR52-P21 card occupy?
The CR52-P21 occupies two adjacent flexible module sub-slots within the router chassis to provide its 40 RJ45 Gigabit ports.
Can I hot-swap the CR52-P21 40-Port RJ45 card?
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.
What is the maximum per-port throughput of the CR52-P21 card?
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.
Does the CR52-P21 support advanced Layer 2 switching features?
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.
What are the environmental operating specifications for this card?
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.
What is the power consumption of the CR52-P21 40-port card?
Under full load, the CR52-P21 typically consumes around 35 Watts; actual power draw varies based on port utilization and router configuration.
How can I troubleshoot link or speed negotiation issues on this card?
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.
What warranty and support are available for the CR52-P21 card?
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.
Where can I purchase or obtain replacement parts for the CR52-P21?
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.