30-pin 1mb 9 Chip SIMM Memory Dram IBM PC 286 386 486 at XT Computer RAM Sims for sale online | eBay
SIMM - Wikipedia
4MB 30-Pin Parity 4pc set 16MB Total Memory 9 Chip SIMM IBM PC 386 486 AT XT MAC | eBay
Tube Time on Twitter: "should I bother fixing this old 386 motherboard? 386DX-25. has cache and supports only 30 pin simms. https://t.co/j7dvfD8nD2" / Twitter
Using SIMMs To Add Some Extra RAM On Your Arduino UNO | Hackaday