How to confirm if the device is compatible with this 1.6T OSFP224 DAC?

The device must meet the following requirements: Equipped with an OSFP224 Cage; SerDes rate of 200G PAM4 per lane; Front panel space and thermal design allowing the use of the Flat-Top form factor.

1m (3ft) 1.6T OSFP224 RHS/Flat Top InfiniBand XDR Passive Direct Attach Copper for Mellanox

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NVIDIA/Mellanox Compatible DAC 1m (3ft) Twin-port 2x800Gb/s OSFP224 RHS/Flat Top to Twin-port 2x800Gb/s OSFP224 RHS/Flat Top InfiniBand XDR Passive Copper Cable

Name: NVIDIA/Mellanox Compatible DAC 1m (3ft) Twin-port 2x800Gb/s OSFP224 RHS/Flat Top to Twin-port 2x800Gb/s OSFP224 RHS/Flat Top InfiniBand XDR Passive Copper Cable
Brand: Naddod
SKU: 103063
Price: 599.00 USD
Availability: InStock
Rating: 5.0 (18 reviews)

#103063

Model: OSFP-1.6T-CU1FH

Sold: 1

In Stock: 37

US$

Cable Types

OSFP-1.6T-CU1FH

OSFP-1.6T-CU1FH

Brand

NADDOD (InfiniBand)

Length

1m (3ft)

Item Spotlights

100% verified by the original, perfectly compatible with NVIDIA XDR system.
Maximum power consumption 0.1W.
8x 200G-PAM4 electrical modulation.
Ultra-low insertion loss ensures no bandwidth bottlenecks in AI clusters.
High-shielded copper structure ensures extreme crosstalk & EMI resistance.
Compliant with OSFP MSA.
30-Day Free Return, 1-Year Free Replacement, 3-Year Warranty, Lifetime After-sales Technical Support.

NVIDIA/Mellanox Compatible DAC 1m (3ft) Twin-port 2x800Gb/s OSFP224 RHS/Flat Top to Twin-port 2x800Gb/s OSFP224 RHS/Flat Top InfiniBand XDR Passive Copper Cable

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Specifications

Applications

Product Highlights

Questions & Answers

Resources

Specifications

Applications

Product Highlights

Questions & Answers

Resources

Description

NVIDIA/Mellanox Compatible DAC 1m (3ft) Twin-port 2x800Gb/s OSFP224 RHS/Flat Top to Twin-port 2x800Gb/s OSFP224 RHS/Flat Top InfiniBand XDR Passive Copper Cable

NADDOD NVIDIA/Mellanox compatible OSFP-1.6T-CU1FH is a 1m (3ft) 1.6Tb/s passive direct attach copper (DAC) cable supporting 1.6Tb/s (8×200Gb/s PAM4) high-speed transmission, meeting the ultra-high bandwidth demands of next-generation AI training clusters and high-performance computing (HPC) systems. The DAC cable features a flat-top connector design for improving thermal efficiency and ensuring optimal space compatibility in high-density cabling environments.

Passive DAC technology delivers ultra-low latency, near-zero power consumption, high reliability, and a cost-effective interconnect solution for short-reach, rack-level deployments. Typical applications include AI/ML accelerator interconnects, high-speed GPU server-to-server links, 1.6T infiniband XDR network architectures, and other high-bandwidth, short-distance connections within modern data center environments.

Specifications

Form Factor

OSFP224

Cable Length

Wire AWG

26 AWG

Commercial Temperature Range

0～70°C (32 to 158°F)

Jacket Material

PET

Power Consumption

<0.1W

Minimum Bend Radius

10xOD

Application

IB XDR, 1.6T Ethernet Compliant

Applications

Product Highlights

Why NADDOD

Module Availability

Worry-Free - Rigorous authentic testing!
Multi-version Device Compatibility

Multi-Version - Easy adaptation for each module!
High-Performance

Actual Test Data-Better results intuitively!

Our Approach

Test scene

All tests were conducted in a real XDR environment to validate compatibility, connectivity, and reliability. NADDOD 1.6T DAC was tested on the NVIDIA ConnectX-8 NIC, maintaining stable operation during the tests. These tests confirm that the DAC provides consistent, low-latency connectivity for XDR clusters.

Test result

NVIDIA ConnectX-8 C8180 (900-9X81E-00EX-ST0) NIC

Software Version: 40.45.1200

Multi-Version

NIC Side Testing

Multi-Version Testing

NADDOD 1.6T DAC operates seamlessly across multiple software versions of the ConnectX-8 NIC, ensuring plug and play in real XDR clusters.
Connectivity

NIC Side Testing

Connectivity Testing

NADDOD 1.6T DAC keeps the connected NIC ports up without link interruptions, providing consistent, low-latency connectivity for XDR clusters.
BER

NIC Side Testing

BER Testing

In BER tests, NADDOD 1.6T DAC maintains an ultra-low BER, ensuring reliable data transmission for demanding XDR workloads.

Questions & Answers

Ask a Question

What are the differences in form factor between the OSFP224 Flat-Top and the standard OSFP? Why is the Flat-Top design adopted?

The Flat-Top structure features a reduced top height, enabling superior airflow paths and cold plate clearance in high-density environments such as liquid-cooled servers and back-to-back densely arranged switches, thereby enhancing heat dissipation efficiency. Additionally, it minimizes obstruction and supports a more compact front panel layout.

What are the main application scenarios of the OSFP-1.6T-CU1FH?

It is mainly used for interconnection between ConnectX-8 NICs.

Is the OSFP-1.6T-CU1FH compatible with OSFP switches?

No. This cable features a flat top/RHS design, while the cable required on the switch side must be the OSFP-1.6T-CU0-9H with a finned top design.