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2m (7ft) NVIDIA/Mellanox Compatible 800G OSFP Finned Top to 2 x 400G OSFP Flat Top Ethernet Passive Direct Attach Copper Breakout Cable
2m (7ft) NVIDIA/Mellanox Compatible 800G OSFP Finned Top to 2 x 400G OSFP Flat Top Ethernet Passive Direct Attach Copper Breakout Cable
2m (7ft) NVIDIA/Mellanox Compatible 800G OSFP Finned Top to 2 x 400G OSFP Flat Top Ethernet Passive Direct Attach Copper Breakout Cable
P/N: O2OSFP-800G-CU
US$191.00
5
Reviews
2
Questions
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4-Year Warranty
30-Day Returns
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（1000 In Stock）

Product Highlights

Minimum Bend Radius 72mm for Flexible Routing
Support 2x 400G Breakout for Higher Port Density
Simplifies Patching and Offers a Cost-effective Way for Short Links
Hot Pluggable OSFP MSA Compliant
Low Insertion Loss and Ultra-low Crosstalk for Improved Performance
High-Speed Connectivity Compliant to IEEE 802.3ck and CMIS v4.0
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Specifications
Q&A
Reviews
Resources
2m (7ft) NVIDIA/Mellanox Compatible 800G OSFP Finned Top to 2 x 400G OSFP Flat Top Ethernet Passive Direct Attach Copper Breakout Cable
The 800G OSFP Direct Attach Cable operates over passive copper, which requires no additional power to ensure quality connectivity. This breakout cable is compliant with OSFP MSA (Multi-Source Agreement) and IEEE 802.3ck standards. It provides a high-speed connection of an 800G OSFP port on one end and two 400G OSFP ports on the other end. Each end contains EEPROM coding that offers product identification and characteristics to the host system. It is power-efficient and suitable for cost-effective close-range interconnections within the equipment room of telecom operators or data centers, etc.
Specifications
Part Number
O2OSFP-800G-CU
Vendor Name
AICPLIGHT
Form Factor
800G OSFP (Finned Top) to 2× 400G OSFP (Flat Top)
Max Data Rate
800Gbps
Media
Copper
Cable Type
Passive Twinax
Minimum Bend Radius
72mm
Power Consumption
≤0.1W
Cable Length
2m (7ft)
Wire AWG
26AWG
Temperature Range
0 to 70°C (32 to 158°F)
Jacket Material
PET
Protocols
OSFP MSA, CMIS Rev 4.0, IEEE 802.3 ck
Modulation Format
PAM4
Certification
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Questions & Answers
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All (2) Compatibility (1)Installation (1)
Q:

How should cables be routed in a high-density rack?

by z***m on 2025-07-10 16:06:16

A:

Use cable managers to maintain airflow and prevent bending.

by Helpful on 2025-07-10 16:41:46

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Q:

Can these transceivers auto-negotiate with older models?

by 1***m on 2025-07-10 15:16:16

A:

Yes, backward compatibility is supported in many cases.

by CPLIGHT on 2025-07-10 16:40:25

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Customer Reviews
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All (5) Performance (1)Compatibility (1)Ease of Use (2)Value (1)
q
q***m
2025-06-01 20:07:42
Confirmed Purchase
5.0

Used in our GPU training pod (8x H100s) to connect each server node. Latency remained sub-microsecond, even with large tensor workloads.

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comment icon Comment 0
R
R***m
2025-05-31 16:15:21
Confirmed Purchase
5.0

Fully compatible with our NVIDIA ConnectX-6 NICs and Mellanox switches. No firmware warnings or handshake delays.

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comment icon Comment 0
q
q***m
2025-05-21 07:58:01
Confirmed Purchase
5.0

High-quality interconnects at a fraction of the price of branded cables. Ideal for scaling AI clusters on a budget.

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comment icon Comment 0
b
b***m
2025-05-19 10:51:22
Confirmed Purchase
5.0

Plug-and-play experience was excellent. The cables came clean and ready for immediate deployment.

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comment icon Comment 0
H
H***m
2025-05-01 17:49:50
Confirmed Purchase
5.0

Strain relief sleeves added during manufacturing helped avoid cable damage during repositioning.

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