Arista Compatible ACC 3m (10ft) Twin-port 2x400Gb/s OSFP Finned Top to 2x400Gb/s OSFP Flat Top Active Copper Cable

DAC (Direct Attach Cable) is a passive copper cable without built-in chips, offering very low power consumption but supporting only short transmission distances (typically ≤3 m). ACC (Active Copper Cable) integrates linear amplification and equalization chips, providing lower power consumption than AEC while typically supporting transmission distances of 3–5 m. AEC (Active Electrical Cable) incorporates DSP retimer chips with stronger signal processing capability, enabling longer transmission distances but with higher power consumption and cost. Overall, ACC sits between DAC and AEC, balancing cost, power consumption, and transmission distance.

Thicker wire (lower AWG number) results in lower insertion loss, enabling longer distances or more stable signal transmission. However, it increases cable stiffness and requires a larger bending radius. Common 26AWG and 28AWG solutions are selected based on distance requirements.

The OSFP-800G-ACCFT features a fin-top connector on one end and a flat-top connector on the other. It is specifically designed for connecting 800G OSFP switches to DGX H100 servers or CX8 NICs.