A RAM where each cell is separately addressable and can store every signal at once (except ✓). There may be as many cells as you want, each consisting of 5 combinators.
The line labeled address is there to select a single cell, output always shows all signals stored in the selected cell and the input signals are stored when the ✓-signal of the input line turns from 0 to 1. Because the combinator that stores the signals (each+0 with its output connected to the input) adds incoming signals to itself each tick, during storing a set of combinators first subtracts the current values from the input and then generates a one tick pulse.
This memory might be useful if you want to store snapshots of e.g. your logistics network content.