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Axiom QDD-400G-DAC-2M-AX 400GBASE-CU QSFP-DD Passive DAC Cable - 2m - 6. 6 ft Twinaxial - Juniper Compatible
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Product Features
Technical Overview
This DAC cable operates at 400 Gbit/s data transfer rates, supporting the latest high-bandwidth networking requirements. The QSFP-DD (Quad Small Form-factor Pluggable Double Density) connectors on both ends provide a compact, high-density interface that's backward compatible with QSFP+ and QSFP28 ports in many cases, though specific compatibility should be verified with your equipment documentation.
The twinaxial cable construction offers excellent signal integrity for short-distance connections up to 2 meters, making it ideal for intra-rack and inter-rack applications within data centers. The passive operation means no signal retiming or electronic components are embedded in the cable assembly, resulting in lower power consumption and reduced heat generation compared to active optical cables.
Key Product Advantages
This Axiom DAC cable delivers several distinct advantages for network administrators and data center operators seeking reliable high-speed connectivity solutions.
Cost-Effective High-Speed Connectivity
Compared to optical transceivers and fiber cabling, this copper DAC solution provides substantial cost savings for short-reach applications while delivering full 400GbE performance.
- Lower total cost of ownership
- No separate transceivers required
- Reduced power consumption
Simplified Deployment
The pre-terminated design with QSFP-DD connectors on both ends eliminates field termination requirements, reducing installation time and potential errors.
- Plug-and-play installation
- No specialized termination tools needed
- Consistent performance out of the box
Deployment / Use Cases
This 400GBASE-CU QSFP-DD Passive DAC cable is specifically designed for data center and enterprise networking environments where high-bandwidth, short-reach connections are required between compatible networking equipment.
Typical deployment scenarios include connecting top-of-rack switches to servers or storage arrays within the same rack, establishing inter-switch links in leaf-spine architectures, or connecting routers to core switches in enterprise networks. The 2-meter length is particularly well-suited for intra-rack connections where equipment is mounted in close proximity.
Data Center Interconnect
Ideal for connecting switches within the same rack or adjacent racks in hyper-scale data centers, supporting high-density 400GbE deployments.
Enterprise Network Backbone
Suitable for core network connections in large enterprise environments where 400GbE bandwidth is required for aggregating multiple lower-speed links.
Highlights
- 400 Gbit/s data transfer rate for high-bandwidth applications
- QSFP-DD connectors on both ends for high-density connectivity
- 2-meter (6.6-foot) twinaxial cable construction
- Passive operation requires no external power
- Juniper compatible for seamless integration
- Lifetime warranty for long-term reliability
- Ideal for short-reach data center connections
- Cost-effective alternative to optical solutions
Specifications
| Specifications | |
|---|---|
| Manufacturer | Axiom Memory Solutions |
| Manufacturer Part Number | QDD-400G-DAC-2M-AX |
| Brand Name | Axiom |
| Product Name | 400GBASE-CU QSFP-DD Passive DAC Cable Juniper Compatible 2m |
| Product Type | Network Cable |
| Technical Information | |
| Cable Type | Twinaxial |
| Cable Length | 6.6 ft (2 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 | Switch,Router,Network Device |
| Data Transfer Rate | 400 Gbit/s |
| Features | Passive |
| Warranty | |
| Limited Warranty | Lifetime |
FAQ
What is the maximum distance supported by this DAC cable?
This 400GBASE-CU QSFP-DD Passive DAC cable is designed for short-reach applications up to 2 meters (6.6 feet). For longer distances, active optical cables or separate transceivers with fiber optic cabling would be more appropriate. The twinaxial copper construction provides optimal signal integrity within this specified range for reliable 400 Gbit/s performance.
Is this cable compatible with non-Juniper networking equipment?
While this cable is specifically tested and verified for Juniper compatibility, QSFP-DD DAC cables often work with equipment from other manufacturers that support the 400GBASE-CU standard. However, compatibility should always be verified with your specific switch, router, or network device documentation, as some equipment may require vendor-coded or specifically approved cables for optimal performance and support.
What does 'passive' mean for a DAC cable?
Passive DAC cables contain only copper conductors without any signal retiming, reclocking, or electronic components embedded in the cable assembly. This means they don't require external power and typically have lower latency compared to active cables. Passive cables are ideal for shorter distances where signal integrity can be maintained without amplification, offering a simpler, more cost-effective solution for intra-rack and short-reach connections.
| Qty | Price | Available |
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