https://www.brainboxes.com/product/discontinued/px-376
PX-376 1 Port RS422/485 Low Profile PCI Express Serial Card Opto Isolated - Brainboxes
Alternative option: ES-320 LP PCIe 1xRS422/485 1MBaud Opto Isolated up to 921,600 baud rates Popular Operating Systems supported
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https://www.kollewin.com/multiport-serial-card/list-1778653915623890482-grid
KOLLEWIN Technology CO. LIMITED| Multiport Serial Card
Multiport Serial Cards are essential components for industrial automation and communication systems, enabling multiple serial device connections via a single...
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https://accesio.com/product/pcie-icm-4sm/?attribute_pa_baud=3m&attribute_pa_rs-232=4&attribute_pa_rs-422=4&attribute_pa_rs-485=4
PCIe-ICM-4SM Multiprotocol Serial Card Family - ACCES I/O Products
Nov 3, 2023 - PCI Express 2- or 4-port isolated RS-242/RS-422/RS-485 card
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https://stason.org/TULARC/pc/apple2/faq/20-013-What-are-the-settings-for-the-Apple-Super-Serial-Card.html
20.013 What are the settings for the Apple Super Serial Card?
apple II Csa2 FAQ: 20.013 What are the settings for the Apple Super Serial Card?
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https://erecycleronline.com/product/lenovo-thinkcentre-m920q-m720q-04x2733-01aj935-serial-vga-adapter-card/
Lenovo ThinkCentre M920Q M720Q 04X2733 01AJ935 Serial VGA Adapter Card – eRecycler Online
Up for sale is a Lenovo ThinkCentre M920Q M720Q 04X2733 01AJ935 serial VGA adapter card. The card was pulled from a tested Lenovo ThinkCentre M920Q. The card…
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