ST-DAC-400G-OSFP-1

400G OSFP DAC — 1m, Built for In-Rack Links

The Sate Optics ST-DAC-400G-OSFP-1 is a 400G direct attach copper cable, factory-terminated with OSFP to OSFP connectors and cut to 1m (3ft) — sized for links inside one rack.

Why This Module

• Lowest-cost way to link two ports: no transceivers, no fiber — one cable, and a passive DAC draws essentially no power
• 1m in-rack reach: spans stacked switches and the servers in the same cabinet, with slack to route neatly
• Factory-terminated and plug-and-play: both ends arrive as one tested assembly — plug in, link up, with lower latency than an optical hop

• Compatible with your platform — coded for major networking platforms, including Cisco, Juniper, Arista, Huawei, Nokia, H3C and ZTE; 100% tested before shipment.

Key Specifications

Used In

• 400G spine switching and AI fabric pods
• GPU cluster and HPC interconnects on OSFP ports
• In-rack links within a single cabinet
• Typical platforms: Cisco Nexus 9300 series, Arista 7060X / 7388 series, Juniper QFX5220 / QFX5700, Huawei CloudEngine 16800, Nokia 7250 IXR, H3C S12500 / S9820 series.

Not sure it fits your equipment? Request a Quote and tell us your switch model — we confirm compatibility before you order.

Where It Fits

• Top-of-rack switching with servers cabled straight into the switch above them
• Stacked and clustered switches patched inside one cabinet
• Replacing transceiver pairs where the run is short enough for copper — lower cost, lower power, nothing to clean or pair

Every module is covered by a 3-year warranty with lifetime maintenance. Standard lead time is 3–7 days for most products, and samples are available for evaluation.