SanDisk Ultra SQUAC 256GB MicroSDXC UHS-I 150MB/s Memory Card

SanDisk Ultra SQUAC 256GB MicroSDXC UHS-I 150MB/s Memory Card

Overview & Capacity

Offers 256GB of storage—ample space for HD photos, music, podcasts, documents, and Full HD video recording 

Ideal for Android smartphones/tablets, Chromebooks, Windows laptops, and cameras thanks to compatibility with the SDXC format

Performance & Speed

Utilizes the UHS‑I bus with U1 (UHS Speed Class 1) and Class 10 ratings—supports Full HD video and burst photography 

Read speed reaches up to 140 MB/s (some listings report 100 MB/s to 140 MB/s depending on device and firmware) 

Write speed maintains at least 10 MB/s due to its Class 10/U1 rating, making it suitable for continuous video recording 

Independent benchmarks show read speeds of ~99 MB/s and writes around 20–21 MB/s 

App Performance

A1-rated for app performance: helps faster launch and smoother operation when apps are installed on the card 

Durability & Extras

Built to be waterproof, shockproof, X-ray-proof, temperature-resistant, and magnet-resistant 

Comes with a microSD-to-SD adapter included for use in standard SD card slots 

Use Cases

Great for Full HD video recording, photography (including RAW), app storage, and general-purpose file storage.

Frequently recommended as an affordable option for Nintendo Switch expansion, though larger capacity cards (256 GB+) are preferred for those extensively downloading games