That's 9-chip parity RAM from the PC world. The Mac will ignore the ninth chips. However, if you had trawled this Forum before asking, you'd have found that the cheapest (~USD30 per set of four) 16MB 30-pin 60ns FPM non-parity RAM can be had here, and if you do not wish to lash out for 16MB, 4MB SIMMs of the same spec. can be had for about USD10 per set of four.
To make sure that the 4MB cards can be moved to any other Compact AIO if you need to do so, ask for 8-chip SIMMs instead of the 2-chip.
Already addressed.
The MLBs of Compact AIOs need to be removed to do many things inside the Macs, especially if the MLBs are to be worked on. You'll get used to it.
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