SP Silicon Power
Silicon Power 256GB Micro SD Card U3 SDXC Up to 100MB/s High Speed Memory Card with Adapter for Nintendo-Switch, Cams and Drones
*Price sourced from Amazon.com. Last updated 2026-06-06. Price and availability subject to change.
Bottom line: The Silicon Power 256GB Micro SD Card U3 SDXC Up to 100MB/s High Speed Memory Card with Adapter for Nintendo-Switch, Cams and Drones is a category leader on buyer feedback in the external storage category, priced around $46.97, rated 4.6★ across 10,414 verified Amazon reviews. A confident buy for most shoppers in this category.
SpecPicks Verdict
SpecPicks classifies Silicon Power 256GB Micro SD Card U3 SDXC Up to 100MB/s High Speed… as a category leader on buyer feedback in the external storage category, based on 10,414 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. SP Silicon Power's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for external storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.6★ average across customer reviews
- ✓ Large, well-vetted feedback pool (10,414 reviews)
- ✓ UHS Speed Class 3 (U3) and Video Speed Class 30 (V30)
- ✓ Backed by SP Silicon Power's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- UHS Speed Class 3 (U3) and Video Speed Class 30 (V30)
- High compatibility for different types of devices including smartphones, tablets, Drones, Android Tablets, Tablet PCs, Action Cameras, DSLR and 4K or Full HD camcorder.
- Compatible with Nintendo Switch In order to use a microSDXC card on the Nintendo Switch console, a system update is required. See Nintendo official site for more details
- 5-year limited manufacturer warranty
Full Specifications
| Brand | SP Silicon Power |
|---|---|
| Color | 256GB |
| Model Name | NOT compatible with Switch2 |
| Read Speed | 100 Megabytes Per Second |
| Unit Count | 1.0 Count |
| Media Speed | 20 MB per second |
| Model Number | SU256GBSTXDU3V20AC |
| Compatibility | Switch, Android |
| Warranty Type | Limited |
| Mfr Part Number | SU256GBSTXDU3V20AC |
| Flash Memory Type | Micro SDXC |
| Compatible Devices | Dash Cam, Drone, Smartphone, Sport Camera |
| Additional Features | Temperature Proof, Water Proof, X Ray Proof |
| Warranty Description | 1 |
Ready to buy?
Silicon Power 256GB Micro SD Card U3 SDXC Up to 100MB/s High Speed Memory Card with Adapter for Nintendo-Switch, Cams and Drones is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-06-06. Price and availability subject to change.
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