The Nikon D3500 is a beginner DSLR camera released in late 2018. The most important change, compared to its predecessor D3400, is the lighter and noticeably smaller design, thanks to the monocoque structure. The well-known GUIDE mode makes it easier for beginners to get started in photography.
We generally recommend SDHC and SDXC memory cards with an UHS-I-interface and a SD Speed Class from 10/U1 or above, if you're using a Nikon D3500. More expensive UHS-II-cards do not offer any advantage in terms of speed (burst mode) or video capabilities.