800G OSFP112 to 2× 400G QSFP112 Breakout DAC

The 800G OSFP112 to 2× 400G QSFP112 Breakout DAC (FOT-DAC-800G-2X400G-O112) is a factory-terminated passive direct attach copper assembly linking one 800G OSFP112 port to 2 independent QSFP112 ports, delivering full 800G throughput over 30/28/26 AWG twinax copper at distances of up to 3 m. As a passive cable it consumes almost no power and adds zero latency — the most cost-effective way to connect equipment inside or between adjacent racks.

Each assembly ships terminated, serialized and 100% traffic-tested: eye-diagram and BER verification on every lane, connector housings inspected, and EEPROM programmed to your requested vendor coding so the cable is recognized natively by your switches and NICs. This model is also offered NVIDIA MCP7Y00-compatible for GPU-cluster deployments.

In breakout mode the switch port is configured to operate as independent sub-ports — ideal for connecting one high-speed spine port to multiple lower-speed leaf devices, doubling usable port density without extra switching hardware. OEM branding, custom lengths and mixed-coding ends (different vendor coding on each end) are all supported with short lead times.