# EM9190 Windows 11 Drivers with virtual NMEA Port but NO AT-Port nor Modem Port

**URL:** <https://forum.sierrawireless.com/t/em9190-windows-11-drivers-with-virtual-nmea-port-but-no-at-port-nor-modem-port/35861>\
**Category:** MC/EM Series\
**Created:** [May 11, 2026, 1:00pm UTC](https://forum.sierrawireless.com/t/em9190-windows-11-drivers-with-virtual-nmea-port-but-no-at-port-nor-modem-port/35861 "2026-05-11T13:00:37Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\
**Post date:** [June 14, 2026, 4:25am UTC](https://forum.sierrawireless.com/t/em9190-windows-11-drivers-with-virtual-nmea-port-but-no-at-port-nor-modem-port/35861/6 "2026-06-14T04:25:12Z")

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> [@airmaxsc](#):
>
> PCIe driver for the EM9190 which installs USB AT Com Ports and the keeps the existing USB NMEA port.

I don’t understand this  
how can PCIe driver install some USB port?

BTW, if you want to use USB AT port or USB NMEA port, you need to check pin 20 and pin 22:

> [@Problems Getting EM9191 Working with M.2 to USB Adapters](https://forum.sierrawireless.com/t/problems-getting-em9191-working-with-m-2-to-usb-adapters/31434/2):
>
> See if this helps:

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