Is it compatible with all 400G OSFP ports?

Yes, this DAC cable complies with the OSFP MSA standard and supports 400G OSFP network interface card ports of mainstream vendors (e.g., NVIDIA/Mellanox).

Why should we choose DAC in AI clusters?

Because AI model training is extremely sensitive to latency, the near-zero latency feature of DAC can significantly reduce global communication time while also reducing power consumption, which helps build large-scale GPU cluster networks.

3m (10ft) 400G OSFP InfiniBand NDR Passive Direct Attach Copper Cable (Flat Top) for NVIDIA/Mellanox

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NVIDIA/Mellanox Compatible DAC 3m (10ft) 400G OSFP Flat Top to OSFP Flat Top InfiniBand NDR Passive Copper Cable

Name: NVIDIA/Mellanox Compatible DAC 3m (10ft) 400G OSFP Flat Top to OSFP Flat Top InfiniBand NDR Passive Copper Cable
Brand: Naddod
SKU: 103005
Price: 229.00 USD
Availability: OnlineOnly
Rating: 5.0 (18 reviews)

#103005

Model: OSFP-400G-CU3FH

Sold: 0

In Stock: Available

Cable Types:

OSFP-400G-CU3FH

OSFP-400G-CU3FH

Brand:

NVIDIA/Mellanox (InfiniBand)

Length:

3m (10ft)

3m (10ft)

Item Spotlights

100% verified by the original, perfectly compatible with NVIDIA NDR OSFP HCAs.
Tested for compatibility with multiple firmware versions, compliant with IBTA Industrial BER standards.
Free test environment and samples are available to experience the high-quality product performance.
Complies with OSFP MSA, CMIS 5.0, and RoHS protocols, providing a reliable and sustainable solution.
30-Day Free Return, 1-Year Free Replacement, 3-Year Warranty, Lifetime After-sales Technical Support.

NVIDIA/Mellanox Compatible DAC 3m (10ft) 400G OSFP Flat Top to OSFP Flat Top InfiniBand NDR Passive Copper Cable

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Specifications

Applications

Product Highlights

Videos

Questions & Answers

Resources

Specifications

Applications

Product Highlights

Videos

Questions & Answers

Resources

Description

NVIDIA/Mellanox Compatible 3m (10ft) 400Gb/s OSFP Flat Top to 400Gb/s OSFP Flat Top Passive Copper Cable

The OSFP 400G DAC Flat Top is a high-performance, low-latency passive direct-attach copper cable designed for 400G InfiniBand networking, AI clusters, and high-performance computing (HPC) interconnects. Utilizing an OSFP form factor, it supports four lanes of 100G PAM4 signaling, delivering up to 400Gbps per link. Its flat-top design offers improved mechanical compatibility and space efficiency, enabling easy deployment in high-density GPU server platforms and OSFP-ported network adapters, ensuring streamlined cabling and optimized heat dissipation.

Specifications

Form Factor

OSFP Flat Top to OSFP Flat Top

Cable Length

0.5m～3m

Wire AWG

28AWG～30AWG

Commercial Temperature Range

0～70°C (32 to 158°F)

Jacket Material

PVC

Power Consumption

<0.1W

Minimum Bend Radius

10x OD

Application

IB NDR, 400G Ethernet Compliant

Applications

Product Highlights

Videos

InfiniBand NDR Product Compatibility Test | NADDOD

Questions & Answers

Ask a Question

What are the main application scenarios of the OSFP 400G DAC (Flat Top) ?

It is mainly used for interconnection between network interface cards with 400G OSFP ports.

What is the typical transmission distance of this DAC cable?

It supports an effective transmission distance of 0.5m to 3m, and it is recommended to use it within 3m to ensure signal integrity and low BER.

What is the difference between the DAC with Flat Top design and a regular DAC?

The main purpose of the Flat Top design is to optimize mechanical compatibility and heat dissipation performance in high-density server platforms, and reduce blockage to adjacent ports.

Resources

OSFP-400G-DACFH Datasheet

Quality Certification

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