800G OSFP Finned Top Passive DAC Twinax Cable – (OSFP to OSFP)
The 800G OSFP Passive Direct Attach Copper (DAC) Twinax cable is designed for ultra-high-speed 800G Ethernet interconnects in modern AI, HPC, and cloud data centers. This solution provides an OSFP-to-OSFP copper connection optimized for short-reach deployments between high-density switches.
Built as a twin-port 2×400Gb/s OSFP configuration, the cable integrates eight high-speed electrical lanes, each supporting up to 100Gb/s using 100G-PAM4 modulation. The result is an aggregated bandwidth of 800Gbps over passive copper.
Both connectors feature a finned-top OSFP design engineered for air-cooled switch platforms, ensuring proper thermal performance in high-power switching environments. With ultra-low latency, near-zero power consumption, and plug-and-play deployment, this passive DAC is ideal for spine-leaf and leaf-leaf architectures inside racks or across adjacent racks.
Fully compliant with OSFP MSA, CMIS v4.0, and IEEE 802.3ck standards, it ensures reliable interoperability in 800G Ethernet environments.
Key Features
• Supports 800G Ethernet (800Gbps aggregate bandwidth)
• OSFP (Finned Top) to OSFP (Finned Top) direct copper interconnect
• 8× 100G PAM4 electrical lanes
• Passive DAC design (no active electronics)
• Ultra-low latency and minimal power draw
• Optimized for air-cooled switching platforms
• Ideal for AI clusters, HPC fabrics, and cloud data centers
Technical Specifications
• Form Factor: OSFP (Finned Top) to OSFP (Finned Top)
• Maximum Data Rate: 800Gbps
• Media Type: Copper
• Cable Type: Passive DAC Twinax
• Wire Gauge: 30AWG
• Modulation Format: 8× 100G PAM4
• Maximum Power Consumption: 0.1W per connector end
• Minimum Bend Radius: 54 mm
• Jacket Material: PET
• Operating Temperature: 0 to 70°C
• Application: 800G Ethernet
• Standards & Protocols: OSFP MSA, IEEE 802.3ck, CMIS v4.0
• Warranty: 5 Years