The system model L7490 supports fingerprint, it is an optional hardware one can choose to install. However, making hardware changed in a in warranty system can void the warranty Dell doesn't recommend doing so. Hence you can reach out to any of the local Dell authorized service center to have it installed with the required hardware components.
Dell-Parnoshree C
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June 1st, 2019 04:00
Hi jojeeka,
The system model L7490 supports fingerprint, it is an optional hardware one can choose to install. However, making hardware changed in a in warranty system can void the warranty Dell doesn't recommend doing so. Hence you can reach out to any of the local Dell authorized service center to have it installed with the required hardware components.
The steps to install fingerprint are listed in the given link https://www.dell.com/support/article/us/en/04/sln155141/fingerprint-reader-installation-guide?lang=en