Cable Length vs Performance
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The tradeoff between cable length and maximum achievable speed or power delivery.
Longer cables suffer more signal attenuation. USB4 at 40 Gbps is limited to ~0.8m passive; HDMI 2.1 starts degrading above 3m; Ethernet Cat6a maintains 10 Gbps to 100m. Active cables and fiber optic variants extend usable length at higher cost.