Ascent Communication Technology

800G OSFP 4xQSFP112 DAC Cable

Ascent's 800G OSFP to 4×200G QSFP112 Passive Direct Attach Copper (DAC) Breakout Cable is a high-performance, low-power interconnect solution designed for next-generation AI clusters, cloud data centers, and high-speed Ethernet switching platforms. Supporting aggregate data rates of up to 800Gb/s, the cable enables a single 800G OSFP port to seamlessly fan out into four independent 200G QSFP112 connections, maximizing switch port utilization while reducing cabling complexity and overall deployment cost. Built with premium 100 Ω twinax copper cable and high-quality OSFP and QSFP112 connectors, the assembly delivers outstanding signal integrity, low insertion loss, and excellent electromagnetic performance for short-reach interconnect applications. The passive design eliminates additional power consumption while providing reliable, low-latency connectivity for AI fabrics, GPU clusters, Ethernet switches, and high-performance computing (HPC) systems. Compliant with the OSFP MSA and QSFP112 MSA specifications, the cable assembly is fully tested to ensure mechanical reliability and electrical performance. Available in multiple cable lengths and wire gauges, it provides a cost-effective solution for high-density 800G networking environments.

· Passive DAC breakout cable

· Supports 800GbE and 4 × 200GbE

· OSFP to 4 × QSFP112 fan-out

· 100 Ω low-loss twinax cable

· Low insertion loss

· Excellent EMI performance

· Hot-pluggable

· Available from 0.5 m to 3 m

· RoHs Compliant

Parameter	Unit	Value
Operating Voltage	V	3.135 to 3.465
Operating Temperature	°C	0 to +70
Storage Temperature	°C	-40 to +85
Humidity		85% MAX
Insertion/Removal Cycles	cycles	OSFP Module : 50 QSFP Module : 50