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P/N:QDD-400G-PC025
SKU:106721
US$211.00
63 Solds
6 Reviews
17 Questions

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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Specifications
Connectivity Solutions
Features
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Reviews
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DAC and AOC Cables for High-Speed Interconnects
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Cisco QDD-400-CU2.5M Compatible 400G QSFP-DD DAC Twinax Cable (2.5-meter, Passive, QSFP-DD to QSFP-DD, 28AWG)

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.

Driving Next-Gen High-Speed Networks

1.6T/800G/400G/200G Transceivers and Cables Insights

View our full range of high-speed optical solutions designed for Cloud, HPC, storage and AI, data center.

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.
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
400G-to-400G Link for Switch-to-Switch
400G-to-400G Link for Switch-to-Server
Combo ID: C1328
Combo ID: C1328
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.

57mm 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 PET Outer Jacket

Provides resistance to wear, tensile, 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.

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QSFP-400G-PCxxx
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
33.5mm~55mm
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
33.5mm~55mm
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
Videos
00:41
QDD-400G-PCxxx Passive DAC Overall Introduction | FS
00:41
QDD-400G-PCxxx Passive DAC Overall Introduction | FS
Questions & Answers
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Customer Reviews
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C***k

United States

November 21, 2023
5.0
I recently purchased an active optical cable for my gaming setup, and I'm thrilled with the results. The performance is top-notch, with lightning-fast data transfer speeds and no lag or latency issues.
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Helpful 0
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S***n

United States

November 16, 2023
5.0
DAC cables have low latency, which means that data can be transmitted quickly without delay. This is especially important for applications that require real-time data processing.
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Comment 0

G***o

United States

December 21, 2021
5.0
good，things
Verified Purchase
Helpful 1
Comment 0
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