Integral Memory's new 512GB microSD card is the biggest microSD card yet - The Verge
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
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Amazon.com: SanDisk 512GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 160MB/s, C10, U3, V30, 4K, A2, Micro SD - SDSQXA1-512G-GN6MA : Electronics