M8SBC-486 (Homebrew 486 computer)

4MB of SRAM would have cost an absolute fortune back in the day. One of the more overlooked reasons behind the explosion of personal computing power back in the 80s and 90s was the invention and proliferation of DRAM which made it finally affordable for people to have enough memory on the system to use it for more than toy scale projects.

Is that hard soldered RAM? Very modern!

You mentioned something about custom holes. What does that mean?

HN hug?