Was surprised to see that this monitor was a 9 pin . EGA / CGA? : r/crtgaming
Alvin's Cables RED-KOMODO Control-Cable for SMALLHD Focus PRO Monitor
MT117, Miracle 9" Monochrome Mono TTL 9-Pin Monitor, Paper White Display, Black External Case
RGB CGA 9-Pin Female to HD15 Pin Male VGA Adapter Cable
Amazon.com: CGA RGB DB 9-Pin to HD 15-Pin VGA Adapter Cable : Electronics
display - Will a VGA monitor work if connected to 9-pin serial port? - Super User
VGA EGA Monitor Adapter MULTISYNC HD15 F to CARD DB9 M
S-Video 9 Pin Mini DIN Y Splitter Cable 1 Male to 2 Female Extension Adapter Cable for TV Receiver, TV, Monitor, Projector 0.5M - AliExpress
12" EGA CGA CRT monochrome Monitor PC XT AT 15.7 kHz DB 9 pin 80's SUPERTRON EU | eBay
For Computer Projector Video Cord Monitor 9 Pin DB9 RS232 Serial Cable Data Communication Straight Through
PC VGA to Commodore 1084S Monitor (DB9 9-pin male) video lead / cable | eBay
Amazon.com: Traovien S-Video Mini-DIN 9-Pin Male to Male Audio Cable for TV Receiver Monitor Projector Audio and Video Receiver etc (Mini 9Pin Male to Male 10Ft/3m) : Electronics
VGA EGA Monitor Adapter MULTISYNC DB9 F to CARD HD15 M