NOTE REGARDING HIGH-SPEED LAYOUT
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This PCB's high-speed signals have been routed using a trace width and
trace spacing of ~7 mils and ~15 mils, respectively. As such, the
inter-pair coupling (i.e. coupling from one differential pair to an
adjacent differential pair) on this PCB is relatively high, which can
lead to unwanted crosstalk.

It is therefore recommended to use more tightly-coupled routing with
accordingly smaller trace width and spacing. For example, ~6 mil trace
width and ~5 mil trace spacing would allow for better inter-pair
isolation and reduced crosstalk. Steps should be taken to ensure the
desired impedance (i.e. 100 Ohms differential) is maintained when
adjusting the trace width and spacing.

