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AddOn QDD-400G-PDAC-1M-AO Compatible 400GBase-CU QSFP-DD to QSFP-DD Direct Attach Cable - Passive Twinax - 1m - 3. 3 ft
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Product Features
Technical Overview
This direct attach cable operates at a full 400 Gbit/s data transfer rate, supporting the latest high-density network standards. The QSFP-DD connectors on both ends are hot-pluggable, allowing for easy installation and maintenance without disrupting network operations. The passive design means no signal conversion or active components, reducing power consumption and potential points of failure.
The twinaxial cable construction uses copper for efficient electrical transmission over short distances, with precise impedance matching to minimize signal loss. This cable is designed for network device interconnections, providing a plug-and-play solution that requires no configuration or management software.
Key Product Advantages
This cable offers several advantages for network architects and IT managers. Its passive twinax design delivers lower latency and power consumption compared to active optical cables, while maintaining full 400GbE performance. The QSFP-DD connectors ensure compatibility with modern high-density network equipment, supporting seamless integration into existing infrastructures.
Cost-Effective Connectivity
Eliminates the need for separate transceivers and fiber patch cables, reducing overall deployment costs for short-reach applications.
- No external power required
- Lower total cost of ownership
- Simplified inventory management
Reliable Performance
Copper twinaxial construction provides stable electrical signaling with minimal attenuation over 1-meter distances, ensuring consistent data throughput.
- Precision impedance matching
- Reduced signal loss
- Durable cable jacket
Deployment / Use Cases
This direct attach cable is optimized for short-reach, high-speed interconnects in data center and enterprise environments. It is commonly used for leaf-spine connections, top-of-rack switching, and high-performance computing clusters where 400GbE links are required between adjacent racks or within the same rack.
Typical applications include connecting QSFP-DD ports on Juniper Networks switches, routers from compatible vendors, or high-density server adapters. Its 1-meter length makes it suitable for direct equipment-to-equipment links, reducing cable clutter and improving airflow in densely packed racks. The TAA compliance also supports deployments in government and regulated industries requiring US-origin components.
Highlights
- 400 Gbit/s data transfer rate for high-speed network connections
- QSFP-DD to QSFP-DD direct attach cable with passive twinax design
- 1-meter length (3.3 feet) ideal for rack-to-rack or within-rack interconnects
- Compatible with Juniper Networks and similar network device platforms
- Copper construction ensures reliable electrical signaling
- Hot-pluggable QSFP-DD connectors for easy installation and maintenance
- TAA compliant and manufactured in the United States
- Lifetime limited warranty for long-term reliability assurance
Specifications
| Specifications | |
|---|---|
| Manufacturer | AddOn |
| Manufacturer Part Number | QDD-400G-PDAC-1M-AO |
| Brand Name | AddOn |
| Product Name | Twinaxial Network Cable |
| Packaged Quantity | 1.0 |
| Product Type | Network Cable |
| Technical Information | |
| Cable Type | Twinaxial |
| Cable Length | 3.3 ft (1 m) |
| Connector Type on First End | QSFP-DD Network |
| Connector on First End Details | 1 x QSFP-DD Network |
| Connector Type on Second End | QSFP-DD Network |
| Connector on Second End Details | 1 x QSFP-DD Network |
| Device Supported | Network Device |
| Data Transfer Rate | 400 Gbit/s |
| Features | Passive |
| Physical Characteristics | |
| Product Material | Copper |
| Miscellaneous | |
| Country of Origin | United States |
| TAA Compliant | Yes |
| Warranty | |
| Limited Warranty | Lifetime |
FAQ
What is the maximum data transfer rate of this direct attach cable?
This cable supports a full 400 Gbit/s (400GbE) data transfer rate, making it suitable for high-speed network interconnects in data centers and enterprise environments. It utilizes the QSFP-DD interface standard to deliver this throughput over copper twinaxial conductors.
Is this cable active or passive, and what does that mean for deployment?
This is a passive direct attach cable, meaning it contains no active electronics or signal conversion components. This design reduces power consumption, lowers latency, and simplifies deployment since no external power is required. Passive cables are typically more cost-effective for short-reach applications up to a few meters.
What network equipment is this cable compatible with?
The cable is designed for compatibility with network devices featuring QSFP-DD ports, including specific Juniper Networks platforms and similar switches, routers, or server adapters. It uses standard QSFP-DD connectors that are hot-pluggable, ensuring broad interoperability with modern high-density networking equipment.
How long is the cable, and what are its typical use cases?
The cable is 1 meter (3.3 feet) long, making it ideal for short-reach interconnects such as within a single rack or between adjacent racks in data centers. Common use cases include connecting leaf and spine switches, top-of-rack deployments, and high-performance computing clusters requiring 400GbE links.
| Qty | Price | Available |
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