If a single power supply computer has multiple outputs, all but 1 output will pass through its target for a millisecond before hitting its target, I think it's visual only but not entirely sure.
2 outputs:
{F619}
the same 2 outputs:
{F621}
How to reproduce:
# spawn in this blueprint: {F622}
# 3 of the 4 outputs will pass through the station for a short time before hitting it