Nintendo Switch 2 owners discover space limits faster than expected once large titles arrive. The console includes 256GB of built-in storage, yet individual games routinely claim 30GB to 60GB or more, with some reaching 90GB or 117GB. First-party releases often sit between 10GB and 30GB while third-party downloads and updates grow collections quickly. Standard microSD cards from the original Switch cannot store digital games on the new hardware, so players need a card built for the Express standard. Samsung’s P9 Express microSDXC 512GB model, priced at $99 today (was $150), fits that requirement and installs in a single step.
Formatted usable storage is roughly 477GB, which effectively triples accessible space to around 768GB even accounting for system files. The Switch 2’s PCIe Express connection allows for sequential read speeds of up to 800MB per second, placing it several seconds ahead of game cards for titles such as Mario Kart World. Various testing have shown that it can load titles in a few seconds faster than a game card, and random access is rather good for flawless scene transitions, among other performance metrics that are only slightly slower than the internal disk in most circumstances.
- TRANSFER SPEEDS UP TO 800 MB/S: With sequential read speeds up to 800 MB/s, get into your game up to 4× faster than our standard microSD cards (UHS...
- DYNAMIC THERMAL GUARD: Keeps its cool even when the action heats up. Dynamic Thermal Guard helps reduce overheating for fast, smooth gameplay.
- ALL YOUR GAMES ON ONE TINY CARD: Store all your games and downloadable content (DLCs) with up to 512GB of reliable storage. No deleting. No...
Dynamic Thermal Guard does its job by monitoring temperature over extended gaming sessions and making adjustments to reduce slowdowns when the card becomes warm. Samsung promises six layers of protection, including water immersion up to a meter deep, severe temperatures that are well outside the operation and storage ranges, shock, vibration, magnetic fields, and even X-ray radiation. Endurance testing have revealed that the 512GB version can endure a remarkable 200TB of cumulative writes, and the card comes with a three-year warranty as standard. Samsung’s Magician program allows you to verify validity, monitor the card’s health, and run performance tests from your computer.
Outside of the Switch 2, this card will fit into any UHS-I microSD slot in a camera, drone, tablet, or phone adaptor and can handle speeds of up to 90MB per second. That’s still more than enough to handle 4K video recording and large photo transfers without difficulty. For computer users who need to transfer huge files between PCs, this card can serve as a highly portable data storage and transport solution. Just keep in mind that full Express speeds are only available on hosts that accept the newer interface. The card itself is extremely lightweight at about a quarter of a gram, and its dimensions are normal microSD, so it should fit easily into a wallet or case without adding any bulk.
