200G DAC Cables
200G QSFP56 passive DAC cables, 0.5 m to 3 m, in two families: the MCP1650-V lengths that link NVIDIA DGX Spark and other GB10 systems (ASUS Ascent GX10, Dell Pro Max GB10, HP ZGX Nano), and the MCP1650-H HDR cables for ConnectX-6 and Quantum HDR. Also here: MCP7H60 400G QSFP-DD-to-2×200G breakouts, which let one switch port feed two Sparks, and the 800G-to-4×200G OSFP breakout. Lifetime warranty, shipping from Knoxville, Tennessee.
Other speeds: 25G · 100G · 400G · 800G · All DAC cables
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From the blog
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Why engineers and teams are moving LLM inference and fine-tuning onto DGX Spark and GB10 systems: bigger models than one unit can hold, private data that never leaves the building, and a desk-side box that matches NVIDIA's production stack.
Does the CPU matter for GPU inference? Dell R7525 (EPYC) vs R740xd (Xeon) compared on PCIe, memory bandwidth and GPU count.
When on-prem AI inference needs a data center switch, when a DAC or ring is enough, and what lossless RoCE Ethernet requires.
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