# \#i-ocards

**URL:** https://community.opal-rt.com/tag/i-ocards/131.md

[Latest](https://community.opal-rt.com/latest.md) · [Categories](https://community.opal-rt.com/categories.md) · [Tags](https://community.opal-rt.com/tags.md)

---

## [How to Check Which I/O Cards Are Installed in Your OPAL-RT Simulator](https://community.opal-rt.com/t/how-to-check-which-i-o-cards-are-installed-in-your-opal-rt-simulator/1010)

<div class="topic-metadata">

**Author:** [@sorfina](https://community.opal-rt.com/u/sorfina)\
**Replies:** 0\
**Last updated:** [October 16, 2026, 1:41pm UTC](https://community.opal-rt.com/t/how-to-check-which-i-o-cards-are-installed-in-your-opal-rt-simulator/1010 "2026-10-16T13:41:28Z")

</div>

How to Check Which I/O Cards Are Installed in Your OPAL-RT Simulator Why check your I/O cards? Your simulator’s I/O cards are how it talks to the outside world (analog and digital signals, communication, and so on). Th…