The 400G QSFP-DD DAC provides a QSFP-DD-to-QSFP-DD copper direct-attach solution and it is suitable for very short links and offer a cost-effective way to establish a 400-Gigabit link between QSFP-400G ports of switches/routers within racks and across adjacent racks. This DAC is designed with ultra-low loss materials, square rings, twisted pair cable 8 wires and shell extension construction for superior mechanical properties and bending performance. It is tested in actual switching systems to ensure optimal signal integrity and the best end-to-end performance. FS currently offers 400G QSFP-DD DAC in lengths of 0.5, 1, 1.5, 2, 2.5, and 3 meters, ideal for SDN, ML, and Cloud Computing.
Note: Direct Attach Copper Twinax Cables with two different jacket materials are shipped randomly from different batches, and the product quality is the same.
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P/N:QDD-400G-PC02
SKU:82453
US$174.00
Product Highlights
Near-Zero Power, Low Latency and Insertion Loss
Tested in Targeted Switches for Superior Performance, Quality, and Reliability
Highly Reliable with No Electronics or Optical Connectors
Designed to Beyond IEEE Industry BER Standards for Reliable Operation Under Harsh Operating Conditions
FS BOX V4.0 - Support Real-time Configuration
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- Expert Customer Service On Call, 5x24 Phone Support
- Local Engineers Provide Professional FS Install™ Services
FS Install™
End-to-End Product Customization
- 600+ R&D Experts in Software and Hardware Domains
- Hardware Adaptation to Tailor Products and Ensure Seamless Compatibility
- Custom Protocol Development Aligned with Unique Business Needs
- Management Platform Integration for Device Onboarding and Feature Development
FS Product Custom
Always-On Tech Support
- 900+ Technical Support and Service Professionals
- 0.5-Day Average Solution Response Time
- On-Site, Remote, Demo, and Online Support Options
- Personalized Technical Services Tailored to Each Project
Tech Support
DAC and AOC Cables for High-Speed Interconnects
Arista Networks CAB-D-D-400G-2M Compatible 400G QSFP-DD DAC Twinax Cable (2-meter, Passive, QSFP-DD to QSFP-DD, 28AWG)
Driving Next-Gen High-Speed Networks
Driving Next-Gen High-Speed Networks
1.6T/800G/400G/200G Transceivers and Cables Insights Learn more
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
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Please Note: Installing a third party transceiver does not void your network equipment warranty. Network equipment manufacturers all have guidelines stating that warranty support on their products will not be affected.
Connectivity Solutions
Features
400G Data Center Networking Solution for HPC
Low Power Consumption for Energy-saving
Direct attach copper is suitable for very short links and offers a cost-effective way to establish a 400-Gigabit link between QSFP-DD-400G ports within racks and across adjacent racks.
39.5mm Bending Radius
Ensures signal integrity and simplifies cable management
Copper Core Design
Offers near-zero power consumption, excellent natural heat dissipation, and energy efficiency
Environmentally Friendly PVC Outer Jacket
Provides resistance to wear, moisture, and corrosion
Tested in Host Devices for Proven Interoperability
Every unit is quality tested for compatibility in the targeted switch environment, which guarantees flawless operations.
Enable Seamless Connectivity for Your Network
FS offers the ability to configure the pre-set compatibility of either connector of the DAC cable online with FS BOX to connect Cisco to Arista, Dell to Juniper, and any other mixes of configurations.
Ideal for Data Center Cabling
400G DAC is used for short-distance connection between ToR stwitch and switch/server. It has good natural heat dissipation effect, energy saving and environmental protection,and is an ideal choice for short-distance network deployment in large data centers.
Max Data Rate | 400Gbps | 400Gbps | 400Gbps | 400Gbps |
Cable Type | Passive Twinax DAC | Passive Twinax DAC | Passive Twinax DAC | Passive Twinax DAC |
Form Factor | QSFP-DD to QSFP-DD | OSFP (Flat Top) to OSFP (Flat Top) | OSFP (Flat Top) to QSFP-DD | QSFP112 to QSFP112 |
Cable Length | 0.5m~3m (2ft~10ft) | 0.5m~2m (2ft~7ft) | 0.5m-2m (2ft-7ft) | 0.5m-1.5m (2ft-5ft) |
Wire AWG | 26AWG~30AWG | 28AWG~30AWG | 28AWG~30AWG | 30AWG |
Minimum Bend Radius | 33mm~57mm | 33mm~39.5mm | 33mm~39.5mm | 33mm |
Power Consumption | ≤0.1W | ≤0.1W | ≤0.1W | ≤0.1W |
Jacket Material | PVC/PET | PVC | PVC | PVC |
Modulation Format | 8x 50Gb/s PAM4 | 8x50Gb/sPAM4 | 8x50Gb/sPAM4 | 8x50Gb/sPAM4 |
Max Data Rate
400Gbps
400Gbps
400Gbps
400Gbps
Cable Type
Passive Twinax DAC
Passive Twinax DAC
Passive Twinax DAC
Passive Twinax DAC
Form Factor
QSFP-DD to QSFP-DD
OSFP (Flat Top) to OSFP (Flat Top)
OSFP (Flat Top) to QSFP-DD
QSFP112 to QSFP112
Cable Length
0.5m~3m (2ft~10ft)
0.5m~2m (2ft~7ft)
0.5m-2m (2ft-7ft)
0.5m-1.5m (2ft-5ft)
Wire AWG
26AWG~30AWG
28AWG~30AWG
28AWG~30AWG
30AWG
Minimum Bend Radius
33mm~57mm
33mm~39.5mm
33mm~39.5mm
33mm
Power Consumption
≤0.1W
≤0.1W
≤0.1W
≤0.1W
Jacket Material
PVC/PET
PVC
PVC
PVC
Modulation Format
8x 50Gb/s PAM4
8x50Gb/sPAM4
8x50Gb/sPAM4
8x50Gb/sPAM4
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