File:30pin SIMM RAM slots, from an Atari STE motherboard.jpg - Wikimedia Commons
Motherboard Parts and usage. - ppt video online download
SIMM - Wikipedia
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SIMM - Wikiwand
SIMM - Wikipedia
SIMMs, DIMMs, and RIMMs | Upgrading and Repairing PCs: Memory | InformIT
Atari ST Memory Information
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File:SIMM Slots with RAM 1.jpg - Wikimedia Commons
Twitter 上的foone:"So yeah, this is one of the motherboards that use SIPP memory. It's basically 30-pin SIMMs but instead of using that slot-socket setup, you have pins and these pin headers.