It should have an M2 SSD slot, if not the hard drive is easy enough to upgrade, you just need to clone the old drive to the new bigger one.
You can use a USB 3.0 to SSD adapter to clone from your SSD to new bigger SSD.
You also have USB 3.0 M2 adapters, you can plug into USB 3.0 and tape it to the back of the pad or use double sided tape.

https://www.ifixit.com/Guide/Dell+XPS+18+HDD-SSD+Replacement/103769

M2 SSD slot:
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Here is a link to download the free DiskGenius software.
https://www.diskgenius.com/

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USB 3.0 M2:
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Last edited by musocity; 12/09/24 04:56 PM.