Amazon Basic Micro SD 512 GB. I have just bought it for my Steam Deck because Sandisk cards prices rose and this card was on offer. It has solid writing speed in
Amazon.com: Made for Amazon SanDisk 512GB microSD Memory Card for Fire Tablets and Fire -TV : Electronics
Made for Amazon SanDisk 512GB microSD Memory Card for Fire Tablets and Fire -TV : Electronics - Amazon.com
Amazon's One-Day Sale Knocks Down Prices of 4K-Capable microSD, SD, CF Cards by Huge Margin
Amazon.com: SanDisk Extreme Pro 512GB SD Card SDXC UHS-I Card for Cameras Works with Canon EOS R, M50, M100 (SDSDXXY-512G-GN4IN) 4K UHD Video Class 10 Bundle with 1 Everything But Stromboli 3.0