Anyways... you are aware that PCs with traditional COM ports (those that did require MAX232 for voltage conversion) went out of fashion some 20 years ago? What is "traditional" COM port then? Isn't this the same but just internal: https://pinoutguide.com/Motherboard/rs232_header_pinout.sh...

Hello! I want to dump BIOS of my PSX and I have a question about serial cable. Will this work if I use this guide to make cable to connect with PC's COM port https://hitmen.c02.at/html/psx_siocable.html? Since we (if I understood correctly) need only TX and RX lines can I use only one MAX232 IC for ...