A RC2014 backplane 8 with a RP2040 VGA Terminal Card installed. The card has had an expansion header fitted and a passive buzzer is attached to GPIO23 through it to provide sound for the Pico MZ-80K firmware that has been installed onto it.
https://files.mastodon.online/media_attachments/files/113/804/403/468/674/786/original/5c6d37916de4783c.jpg