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Name:
QSFP-H40G-CU5M
- Description:
- 40GBASE-CR4 Passive Copper Cable, 5m
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- Brand:
- Cisco
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- GTIN:
- 819814015434
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3 - List Price:
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$442.00
- Price:
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$97.00
78% off
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QSFP-H40G-CU5M
40GBASE-CR4 Passive Copper Cable, 5m
$442.00
$97.00
49 in Global Warehouse
$97.00
78% off
TRUSTED, TRIED, PROVEN
QSFP-H40G-CU5M Overview
QSFP-H40G-CU5M is a QSFP cable assembly designed for 40G data rate applications, providing a passive direct-attach copper (DAC) connection for short-range transmission in data centers and enterprise networks. It supports Ethernet protocols and offers a reliable, cost-effective alternative to optical modules for high-bandwidth interconnects.
QSFP-H40G-CU5M conforms to the QSFP form factor with dimensions specified in its datasheet, making it ideal for high-density port environments. Its integrated design and robust performance meet the demands of modern telecom and enterprise infrastructures while ensuring compatibility with industry-leading vendors.
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QSFP-H40G-CU5M Specifications
| Product Type | Transceiver |
| Form Factor | QSFP |
| Data Rate | 40G |
| Connector Type | N/A |
| Wavelength | N/A |
| Transmission Distance | Short-Range |
| Fiber Type | N/A |
| Max Distance | 5 meters |
| Supported Protocols | Ethernet |
| Network Interface | Ethernet |
| Power Consumption | N/A |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | 3.3V |
| Compatibility | Cisco / Juniper / Huawei / Arista |
| Product Name | QSFP-H40G-CU5M |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
QSFP-H40G-CU5M Use Case
High-Density Top-of-Rack 40GbE Switch Interconnect
In large-scale data centers, network architects deploy QSFP-H40G-CU5M-40GBASE-CR4 Passive Copper Cable, 5m to connect leaf and spine switches within server racks. This solution delivers cost-effective, low-power 40GbE links with minimal signal loss, streamlining cable management and boosting rack-level throughput by up to 40 Gbps per port.
High-Performance Computing Cluster Node Link
Research institutions leverage QSFP-H40G-CU5M-40GBASE-CR4 Passive Copper Cable, 5m for direct 40GbE connections between HPC compute nodes. The passive copper design ensures ultra-low latency and high reliability under heavy data loads, accelerating parallel workloads and enhancing cluster efficiency while reducing overall TCO.
Ultra-Low-Latency Financial Trading Network Upgrade
Financial firms upgrade their trading floors with QSFP-H40G-CU5M-40GBASE-CR4 Passive Copper Cable, 5m to link matching engines and market data feeds. The cable’s zero-polarity design and stable 40 Gbps channels minimize jitter and latency, ensuring compliant, real-time trade execution and improved market responsiveness.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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|---|---|---|---|---|---|
| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista |
| Connector Type | MPO | LC | N/A | Integrated Active Optical Cable | LC |
| Data Rate | 40G | 40G | 40G | 40G | 10G |
| Depth | N/A | 0.30 inches | N/A | N/A | 0.85 inches |
| Fiber Type | Multi-mode | Single-mode | N/A | N/A | Single-mode |
| Form Factor | QSFP | QSFP+ | QSFP | QSFP+ | QSFP |
| Height | N/A | 0.75 inches | N/A | N/A | 0.27 inches |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Distance | 100 meters | 10 km | 5 meters | 10m | 10 km |
| Network Interface | Ethernet | Fiber | Ethernet | Fiber | Ethernet |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | 4 W | 3.5W | N/A | N/A | 3.5 W |
| Product Name | QSFP-40G-SR4-S | WSP-Q40GLR4L= | QSFP-H40G-CU5M | QSFP-H40G-AOC10M | QSFP-4X10G-LR-S= |
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Protocols | Ethernet | Ethernet, Fibre Channel | Ethernet | Ethernet | Ethernet |
| Transmission Distance | Short-Range | Long-Range | Short-Range | Short-Range | Long-Range |
| Wavelength | 850 nm | 1310 nm | N/A | N/A | 1310 nm |
| Weight | N/A | 0.045 lbs | N/A | N/A | 0.10 lbs |
| Width | N/A | 0.60 inches | N/A | N/A | 0.66 inches |
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Questions & Answers
Q
What is the QSFP-H40G-CU5M cable?
A
The QSFP-H40G-CU5M is a 5 meter, 40GBASE-CR4 passive copper cable designed for short-reach 40 GbE interconnects between QSFP+ ports.
Q
Which data rates does the QSFP-H40G-CU5M support?
A
It supports 40 Gb/s aggregated data rates over four parallel 10 Gb/s lanes, fully compliant with IEEE 802.3ba specifications.
Q
Is the QSFP-H40G-CU5M compatible with my switch or router?
A
Yes, it is interoperable with QSFP+ copper ports from leading vendors including Cisco, Juniper, Arista, Mellanox and HP.
Q
What are the benefits of using a passive copper cable?
A
Passive copper cables offer low latency, low power consumption, and a lower total cost of ownership compared to active optical modules for short-reach links.
Q
Can I hot-swap the QSFP-H40G-CU5M cable?
A
Yes, it supports hot-plug insertion and removal without shutting down connected equipment, ensuring uninterrupted data center operations.
Q
What environments are suitable for the QSFP-H40G-CU5M?
A
It is optimized for data center, enterprise backbone, and high-performance computing environments requiring high-density 40 GbE interconnects.
Q
How do I install the QSFP-H40G-CU5M cable?
A
Align the two QSFP+ connectors with the device ports, insert firmly until the latch engages, and verify link status via your network management interface.
Q
What is the maximum operating temperature?
A
The cable is rated for an operating temperature range of 0 °C to 70 °C (32 °F to 158 °F) per IEEE standards.
Q
Does the QSFP-H40G-CU5M require external power?
A
No, as a passive copper cable, it draws power directly from the QSFP+ host transceivers, eliminating the need for external power supplies.
Q
How does the QSFP-H40G-CU5M differ from active copper cables?
A
Unlike active cables with integrated electronics for signal conditioning, this passive cable relies on host transceiver capabilities, offering cost and power savings for distances up to 7 m.
Q
What warranty covers the QSFP-H40G-CU5M?
A
It includes a limited lifetime warranty covering manufacturing defects and performance compliance as long as the original purchaser owns the cable.
Q
Can the QSFP-H40G-CU5M support breakout configurations?
A
No, this cable is designed for direct 40 GbE to 40 GbE connections and does not support 4×10 GbE breakout modes.
Q
What is the insertion loss specification?
A
The cable meets IEEE 40GBASE-CR4 insertion loss requirements with a maximum channel loss of 9 dB at 10 GHz for a 5 meter length.
Q
How do I verify the cable’s authenticity?
A
Check the manufacturer’s label for the QSFP-H40G-CU5M SKU and scan the accompanying QR code to confirm OEM certification.
Q
What diagnostics features are available?
A
It supports digital optical monitoring (DOM) via the QSFP+ host, providing real-time link status, temperature and voltage readings.
Q
Is the cable RoHS compliant?
A
Yes, the QSFP-H40G-CU5M meets RoHS and REACH environmental standards, ensuring it is free from hazardous substances.
