Traffic Shaper/Flow Regulator for 120+something per minute of traffic.
Blue sorter over 2 squares = 120/m. Yellow sorter over 2 squares divided by 4 = 7.5/m. Blue guarantees the bandwidth - yellow/4 guarantees to drain the overflows if any.
Could be used to smooth the bursts of production of the very slow late-game items. But, ultimately, useless since it's too large.