800G OSFP | Direct Attach Cable (DAC)

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1m(3ft) NVIDIA/Mellanox MCP4Y10‑N001(980-9IA0F-00N001) Compatible 800G OSFP Finned Top InfiniBand NDR Passive Direct Attach Copper Twinax Cable

P/N: O800-O800-C1

US$119.00

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4-Year Warranty

30-Day Returns

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（1000 In Stock）

Product Highlights

Qualified for InfiniBand NDR End-to-end Systems

Lowest-latency, Low Insertion Loss, Low Crosstalk, High-speed Interconnect

8x 100G-PAM4 to 8x 100G-PAM4

100% Verified by the Original, Perfectly Compatible with NVIDIA QM9700/9790 Devices

Minimum Bend Radius 54mm for Flexible Routing

Simplifies Patching and Offers a Cost-effective Way for Short Links

Compliant with OSFP MSA, IEEE 802.3ck and CMIS v4.0

Specifications

Q&A

Reviews

Resources

1m(3ft) NVIDIA/Mellanox MCP4Y10‑N001(980-9IA0F-00N001) Compatible 800G OSFP Finned Top InfiniBand NDR Passive Direct Attach Copper Twinax Cable

The NVIDIA/Mellanox MCP4Y10-N001 is an 2x400Gb/s twin-port OSFP to 2x400Gb/s twin-port OSFP InfiniBand NDR Direct Attached Copper cable. Using the Octal Small Form factor Plug (OSFP) and contains eight high-speed electrical copper pairs, each operating at data rates of up to 100Gb/s. This cable is compliant with OSFP MSA (Multi-Source Agreement) and IEEE 802.3ck standards.
DACs offer the lowest latency, so are widely used in data centers to connect servers and GPU compute systems to the top-of-rack (TOR) switches and link spine-to-super-spine switches inside racks over short cable lengths. DACs are also used to create InfiniBand storage fabrics with hard-disk-drive (HDD) and flash memory subsystems.
Featuring a simple design and minimal components, DAC cables offer the lowest-cost, lowest-latency, and near-zero-power connections for high-speed links. They enhance port bandwidth, density, configurability, and reduce power requirements in supercomputers and hyperscale systems.

Specifications

NVIDIA/Mellanox InfiniBand Compatible

MCP4Y10-N001(980-9IA0F-00N001)

Vendor Name

AICPLIGHT

Form Factor

OSFP (Finned Top) to OSFP (Finned Top)

Max Data Rate

800Gbps

Media

Copper

Cable Type

Passive Twinax

Minimum Bend Radius

54mm

Power Consumption

≤0.1W

Cable Length

1m (3ft)

Wire AWG

30AWG

Temperature Range

0 to 70°C (32 to 158°F)

Jacket Material

PET

Protocols

OSFP MSA, IEEE 802.3ck, CMIS v4.0

Modulation Format

PAM4

Certification

Questions & Answers

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All (5) Management (1)Product (1)Compatibility (1)Installation (1)Performance (1)

Do these cables require special configuration after plugging in?

by O***m on 2025-07-10 10:20:06

No special configuration is needed. The cables are hot-swappable and designed for plug-and-play operation in InfiniBand environments.

by Helpful on 2025-07-10 10:25:43

Helpful 0

Do InfiniBand AOC cables support long-distance connections?

by M***m on 2025-07-10 10:13:58

Yes, AOC (Active Optical Cables) support longer distances than DACs, typically up to 30 meters or more, while maintaining low latency and high bandwidth transmission.

by CPLIGHT on 2025-07-10 10:26:18

Helpful 0

What is the difference between HDR and NDR InfiniBand cables?

by Q***m on 2025-07-10 10:10:30

HDR (High Data Rate) supports up to 200Gb/s per port, while NDR (Next Data Rate) can handle 400Gb/s. Both are used for high-performance computing, but NDR is designed for newer-generation systems requiring ultra-high bandwidth.

by Helpful on 2025-07-10 10:23:26

Helpful 0

Can these cables be used for GPU Direct RDMA communication?

by i***m on 2025-07-10 09:54:18

Absolutely. These InfiniBand cables support GPU Direct RDMA, enabling low-latency, high-throughput data transfers directly between GPUs across the fabric.

by CPLIGHT on 2025-07-10 10:24:35

Helpful 0

Are these InfiniBand DAC/AOC cables compatible with NVIDIA/Mellanox ConnectX NICs?

by O***m on 2025-07-10 09:30:17

Yes, our InfiniBand DAC and AOC cables are fully compatible with NVIDIA/Mellanox ConnectX-5, ConnectX-6, and ConnectX-7 NICs, as well as with NVIDIA Quantum and Spectrum switches.

by Helpful on 2025-07-10 10:24:04

Helpful 0

Customer Reviews

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All (10) Performance (1)Compatibility (1)Ease of Use (1)Customer Support (1)Value (1)Reliability (1)Flexibility (1)Scalability (1)Quality (1)Delivery (1)

n***m

2025-06-11 04:41:48

Confirmed Purchase

5.0

The connectors are solid, and the shielding is robust. No damage or signal degradation even after multiple insertions.

Helpful 0

l***m

2025-06-06 21:43:47

Confirmed Purchase

5.0

Cables were clearly labeled and well packaged. Plug-and-play setup made our data center upgrade smooth and fast.

Helpful 0

m***m

2025-05-22 19:46:30

Confirmed Purchase

5.0

Compared to OEM versions, these cables offer the same performance at a significantly lower cost. Great for large-scale deployment.

Helpful 0

b***m

2025-05-22 11:46:39

Confirmed Purchase

5.0

We used these InfiniBand HDR DAC cables to link GPU servers in our HPC cluster. The latency and bandwidth were excellent — no packet loss even under full load.

Helpful 0

G***m

2025-05-20 13:04:05

Confirmed Purchase

5.0

We had tight routing paths between racks and these DACs were flexible enough for clean cable management without strain.

Helpful 0

S***m

2025-05-18 16:30:38

Confirmed Purchase

5.0

We used breakout versions (1x400G to 4x100G) to expand our interconnect fabric and they worked flawlessly.