400GbE QSFP112 to QSFP112 Passive DAC Cable (0.5M) — NVIDIA DGX Spark & ASUS Ascent GX10, 400G PAM4
0.5m 400GbE QSFP112-to-QSFP112 passive direct-attach copper (DAC) cable. Purpose-built to interconnect two NVIDIA DGX Spark or ASUS Ascent GX10 AI systems at 400Gbps, and for 400G RoCE Ethernet links to Mellanox 400G switches and NVIDIA ConnectX-7 adapters — low-latency, hot-pluggable, no transceivers or external power needed.
Description
This high-performance 400G QSFP112 DAC cable is engineered to deliver reliable high-bandwidth connectivity for enterprise and AI computing environments. Designed for compatibility with NVIDIA DGX Spark and ASUS Ascent GX10 platforms, this short-range QSFP interconnect ensures stable, low-latency data transmission between nodes in high-performance computing infrastructures.
It provides four data channels at up to 112Gbps (PAM4) per lane, meeting 400G Ethernet requirements, and is ideal for GPU interconnect, node-to-node connectivity and high-speed data communication in AI compute clusters, GPU servers and HPC nodes.
- Passive 400GbE QSFP112 DAC — 0.5m / 1.64ft, 30AWG, for NVIDIA DGX Spark / ASUS Ascent GX10 dual-system interconnection and 400GbE RoCE Ethernet connectivity.
- Hot-pluggable, 4×100Gb/s PAM4 — 3.3V single supply voltage, maximum power consumption under 0.1W.
- Standards compliant — 400G QSFP112 MSA, IEEE 802.3ck; operating case temperature 0–70°C.
- Signal integrity — ultra-low crosstalk, optimised construction to minimise insertion loss, 100% tested end-to-end.
- Reliability — anti-static packaging, 2-year product quality guarantee and lifetime technical support.