800G OSFP Finned Top to 2×400G OSFP Finned Top Passive Breakout DAC Twinax Cable
The 800G OSFP to 2×400G OSFP Passive Direct Attach Copper (DAC) breakout cable is engineered for high-density 800G Ethernet deployments in telecom and data center environments. This passive copper solution enables a single 800G OSFP port to split into two independent 400G OSFP connections, delivering a practical and cost-efficient breakout architecture.
Compliant with OSFP MSA, IEEE 802.3ck, and CMIS v4.0, the cable ensures interoperability with modern 800G and 400G Ethernet platforms. Operating over passive Twinax copper, it requires no additional power for signal conditioning, making it an energy-efficient solution for short-range connectivity.
Designed for intra-rack and short inter-rack interconnections, this breakout DAC is ideal for spine-leaf networks, AI clusters, hyperscale cloud infrastructures, and high-performance computing (HPC) environments.
Key Features
• Converts 1×800G OSFP (Finned Top) to 2×400G OSFP (Finned Top)
• Passive Direct Attach Copper (DAC) breakout solution
• 8×100G-PAM4 signaling (800G side)
• Low latency and ultra-low power consumption
• Optimized for short-distance data center interconnects
• Fully compliant with OSFP MSA and IEEE 802.3ck
• Ideal for telecom equipment rooms and high-density data centers
Technical Specifications
• Form Factor: 800G OSFP (Finned Top) to 2× 400G OSFP (Finned Top)
• Maximum Data Rate: 800Gbps aggregate
• Media Type: Copper
• Cable Type: Passive Breakout DAC Twinax
• Wire Gauge: 28AWG
• Modulation Format: 8×100G-PAM4
• Maximum Power Consumption:
o 0.1W (800G end)
o 0.1W per 400G end
• Minimum Bend Radius: 40.5 mm
• Operating Temperature: 0 to 70°C
• Jacket Material: PVC
• Standards & Protocols: OSFP MSA, IEEE 802.3ck, CMIS v4.0
• Warranty: 5 Years