SanDisk 256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 190MB/s, C10, U3, V30, 4K, 5K, A2, Micro SD Card - SDSQXAV-256G-GN6MA

This card is everything I needed and more. I’ve tested it thoroughly in both my Steam Deck and Nintendo Switch, and it performs perfectly—no lag, no crashes, no issues with read/write speeds. Games load fast, updates install quickly, and large files transfer without any hiccups.The 2TB capacity is an absolute game-changer for anyone running a big emulation library or downloading tons of games digitally. I’ve filled this with hundreds of gigabytes worth of games, videos, and apps, and it hasn’t skipped a beat. It’s rated up to 240MB/s, and it holds up well even under heavy use.I also appreciate that it comes with an SD adapter for easy use in laptops and card readers. I’ve used it for 4K video capture too, and it hasn’t dropped a single frame. It's V30 and A2 rated, which means it's optimized for both video recording and fast app performance.Highly recommend this to anyone looking for high-capacity, high-speed, reliable storage—especially for gaming handhelds like the Steam Deck or Switch. I’ll definitely be buying another one in the future.

This card delivers fast read/write speeds and works flawlessly in my drone and GoPro. Handles 4K video without lag or dropped frames. Transfers to PC are quick, and it’s held up well in heat, cold, and even light rain. A solid choice for anyone needing dependable, high-speed storage.

I've been using this 128GB SanDisk Extreme in both my drone and several Eufy security cameras around the house, and it's been rock solid. The speed ratings aren't just numbers on the package - you can actually feel the difference when transferring 4K footage off the drone.For drone work, the write speeds keep up with high bitrate recording without any dropped frames or stuttering. I've shot extended flight sessions in 4K and never had issues with the card choking up or corrupting files. The 190MB/s read speed makes pulling footage onto my computer way faster than the cheaper cards I used to buy.The Eufy cameras have been equally happy with it. No lag in recording, and when I need to pull clips for review, everything loads quickly through the app. The A2 app performance rating really shows - the cameras boot up faster and navigate through recorded footage smoothly.Build quality feels legit too. It's been through temperature swings from indoor cameras to outdoor drone flights and keeps working without complaints. The included adapter is handy for quickly swapping between devices or transferring files.At this capacity and speed class, it's definitely an investment compared to basic microSD cards, but if you're recording 4K content regularly, the performance difference is worth every penny. No more worrying about whether your memory card can keep up with your equipment.

Works well for my uses, not too expensive for a storage device of its type, and as someone whose bought a great many for cameras for photography and video. Plugging in between devices the quality or media is retained quite nicely. Since it's a mini SD using an adapter it can plug into about anything that has an SD slot.

I have been buy SanDisk for years and they never disappoint. All of their SD cards and USB drives have a great longevity and are always as fast as advertised. I always by the faster versions in the type I need for best performance. These work great in N SW1, Samsung phones and tablets (and probably other brands), Raspberry Pi, and anything else that needs a micro SD card.

As described and arrived ontime. The 128GB measured to be 119GB. I purchased these to use with my DJI Osmo Action 3, but despite being listed as a recommended card for the Action 3, neither of these cards were recognized by the camera. They worked fine and formatted exFat via Win10.

I’ve been buying a lot of switch games lately and some of them come with digital codes for download so I upgraded from my old card. Now I can download many more games. Solid card, no issues so far.

The SanDisk 512GB Extreme microSDXC is a high-performance memory card perfect for gaming on the Nintendo Switch. With read speeds up to 190 MB/s and write speeds up to 130 MB/s, it handles demanding games and app loading with ease. The 512GB capacity stores dozens of games, and its durable and It includes an SD adapter and backed by a lifetime warranty.Pros:Huge 512GB capacity.Durable and reliable.Cons:Slightly expensive.Verdict: Excellent for fast, reliable storage. Great value at $35.69.Rating: 10/10