SanDisk
256GB Ultra USB 3.0 Flash Drive - SDCZ48-256G-U46 Black
*Price sourced from Amazon.com. Last updated 2026-06-07. Price and availability subject to change.
Bottom line: The 256GB Ultra USB 3.0 Flash Drive - SDCZ48-256G-U46 Black is a category leader on buyer feedback in the external storage category, priced around $49.79, rated 4.7★ across 131,946 verified Amazon reviews. A confident buy for most shoppers in this category.
Step up to high‐speed USB 3. 0 and transfer your videos, photos and files up to ten times faster than standard USB 2. 0 drives. SanDisk Ultra USB 3. 0 Flash Drive takes the wait out of moving, sharing or backing up big files-now you can transfer a full‐length movie from your laptop to your flash drive in way less than a minute. Password protection lets you keep your private files private2 and still generously share with family and friends. And, with a sleek, sturdy SanDisk Ultra USB 3. 0 Flash Drive in your pocket, you won't need an Internet connection to access those photos and videos…
SpecPicks Verdict
SpecPicks classifies SanDisk 256GB Ultra USB 3.0 Flash Drive - SDCZ48-256G-U46 Black as a category leader on buyer feedback in the external storage category, based on 131,946 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. SanDisk'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 — 4.7★ average across customer reviews
- ✓ Large, well-vetted feedback pool (131,946 reviews)
- ✓ Unique, sleek design for the modern home
- ✓ Backed by SanDisk'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
- You can be confident in the good quality, performance and reliability of every SanDisk Product
- Unique, sleek design for the modern home
- With these speeds you can be sure that every transfer or save will end faster than ever before
- Read Speed up to 100 MB/s2
Full Specifications
| UPC | 619659125974 |
|---|---|
| ASIN | B00YFI1A66 |
| Brand | Sandisk |
| Color | black |
| Model Name | 256GB Ultra Fit USB 3.0 Flash Drive 100MB/s |
| Read Speed | 100 |
| Unit Count | 1.0 Count |
| Item Weight | 0.03 Pounds |
| Write Speed | 40MB/s |
| Manufacturer | Western Digital Technologies Inc. |
| Model Number | SDCZ48-256G-U46 |
| Built-In Media | Memory, USB Drives, USB Flash Drives |
| Item Type Name | Sandisk Ultra USB 3.0 Flash Drive - SDCZ48-256G-U46 |
| Special Feature | Lightweight |
Ready to buy?
SanDisk 256GB Ultra USB 3.0 Flash Drive - SDCZ48-256G-U46 Black 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 2026-06-07. Price and availability subject to change.
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