AddOn's 800G OSFP DAC portfolio delivers dependable, high-quality connectivity for high-speed, short-reach network environments. From passive copper to active solutions with signal conditioning and additional reach, our portfolio provides flexible connectivity options for AI/ML clusters, hyperscale data centers, cloud infrastructure, and enterprise networks.
Each solution undergoes extensive compatibility and performance testing and is backed by AddOn's lifetime warranty, helping engineers and VARs reduce lead times and deploy scalable 800G infrastructure with confidence.
800G OSFP to OSFP-RHS Active DAC
MSA Compliant 800GBase-CU OSFP to OSFP-RHS Direct Attach Cable (Active Twinax, 0.5m)
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Mellanox® MCA4J80-N003-FTF Compatible TAA 800GBase-CU OSFP to OSFP-RHS Direct Attach Cable (Active Twinax, 3m) | SKU: MCA4J80-N003-FTF-AO |
Features & Benefits:
- Active signal conditioning helps maintain reliable performance across supported cable lengths.
- Designed for short-reach server-to-switch connectivity in AI/ML, cloud, and hyperscale data centers.
- OSFP-RHS connectivity supports next-generation platforms with right-hand-side OSFP interfaces.
- Avoid delays with readily available stock and fast shipping from our U.S. & U.K. locations.
- Backed by a lifetime warranty for long-term reliability and peace of mind.
800G OSFP Active DAC
MSA Compliant 800GBase-CU OSFP to OSFP Direct Attach Cable (Active Twinax, 0.5m) Infiniband Only | |
Mellanox® Compatible TAA 800GBase-CU OSFP to OSFP
Direct Attach Cable (Active Twinax, 0.5m),
InfiniBand Only | |
Mellanox® MCA4J80-N003 Compatible TAA
800GBase-CU OSFP to OSFP Direct Attach Cable
(Active Twinax, 3m), InfiniBand Only | SKU: MCA4J80-N003-AO |
Features & Benefits:
- Supports full 800G bandwidth with 8×100G PAM4 lanes for demanding workloads.
- Active copper design helps maintain stable, low-latency connectivity across supported cable lengths.
- Optimized for high-performance short-reach connections within racks and data center environments.
- Avoid delays with readily available stock and fast shipping from our U.S. & U.K. locations.
- Backed by a lifetime warranty, guaranteeing long-lasting reliability and peace of mind.
800G OSFP Passive DAC
MSA Compliant 800GBase-CU OSFP to OSFP Direct Attach Cable (Passive Twinax, 50cm)
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Mellanox® MCP4Y10-N00A Compatible TAA
800GBase-CU OSFP to OSFP Direct Attach Cable
(Passive Twinax, 0.5m, InfiniBand)
| SKU: MCP4Y10-N00A-AO |
Features & Benefits:
- Supports full 800G bandwidth with an ultra-low-latency passive copper design.
- Provides reliable signal integrity for short-reach, high-density network connections.
- Delivers low power consumption of less than 0.1W for efficient deployments.
- Avoid delays with readily available stock and fast shipping from our U.S. & U.K. locations.
- Backed by a lifetime warranty, guaranteeing long-lasting reliability and peace of mind.



