Description
Description
The SanDisk microSD Express (256 Go) is a next-generation, high-performance microSDXC card using the microSD Express (PCIe/NVMe) interface. It delivers blazing read/write speeds for fast game load times, rapid file transfers, and smooth recording/playback of high-bitrate video. Ideal for the Nintendo Switch 2 and other devices that support microSD Express — while remaining backward compatible with standard microSD slots (operating at the host device’s maximum supported speed). The card is built for everyday durability (waterproof, shockproof, X-ray resistant) and is designed to be a future-proof storage upgrade for demanding mobile and embedded applications.
Tech Specs
| Model / Part Number | SDSQXFN-256G-GN4NN |
| Capacity | 256 GB (256 Go) |
| Interface / Speed Class | microSD Express (PCIe NVMe); backward compatible with microSD / UHS-I |
| Max Read Speed | Up to ~880 MB/s (device dependent) |
| Max Write Speed | Up to ~650 MB/s (device dependent) |
| Sustained Write | Sustained performance suitable for high-bitrate video and fast random I/O |
| Durability | Waterproof; Shockproof; X-ray resistant |
| Operating Temperature | –25 °C to +85 °C (typical for industrial-grade microSD) |
| Storage Temperature | –40 °C to +85 °C |
| Compatibility | Nintendo Switch 2 and other microSD Express-capable devices; backward compatible with microSDXC/microSD slots (performance limited by host) |
| Warranty | 1-Year Warranty Provided by 101 Multimedia |
★ ★ ★ ★ ☆ 4.7 out of 5 “Blazing fast on Switch 2 — noticeably quicker load times and transfers. Works as expected in Express-capable hosts.” — Verified user review