Matches throughput of item 1 to the throughput of item 2 regardless of overflow or underflow of item 2. More specifically, throughput of item 1 does not exceed throughput of item 2. If item 1 is missing, then item 2 still passes.

Can be used, for example, to supply fuel or graviton lens only when universe matrices are consumed. This way, if you pause research or matrices stop being produced, you will not waste resources on extra power.

Item 1 is red matrix, Item 2 is blue matrix.
Change filters in the splitters to use the items you need.
Requires 100 placeholder items (iron and copper ingots) to be put in the depots.
Monitors show alerts if placeholder items are missing. Monitors and the tesla tower can be removed after placeholder items are put in the depots.