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SANDISK 256GB Ultra USB 3.0 Flash Drive - SDCZ48-256G-GAM46, Black competes with other External Storage products on SpecPicks. Use our Compare tool to view specs side-by-side, or browse the full External Storage category for alternatives.

SanDisk

256GB Ultra USB 3.0 Flash Drive - SDCZ48-256G-GAM46, Black

Name: SANDISK 256GB Ultra USB 3.0 Flash Drive - SDCZ48-256G-GAM46, Black
Brand: SanDisk
SKU: B081QSHG1K
Price: 41.99 USD
Availability: InStock

By SpecPicks Editorial · Verified 2026-07-22

$41.99

Buy on Amazon — $41.99 Compare to similar external storage

*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.

Bottom line: The 256GB Ultra USB 3.0 Flash Drive - SDCZ48-256G-GAM46, Black is a niche pick — read recent reviews before buying in the external storage category, priced around $41.99. Read recent reviews carefully before committing.

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 less than a minute(1). Password protection lets you keep your private files private(2) 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-GAM46, Black as a niche pick — read recent reviews before buying in the external storage category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. SanDisk's positioning sits within the broader category mid-tier. 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

✓ Backward compatible with USB 2.0
✓ 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

Transfer speeds up to 10x faster than standard USB 2.0 drives (4MB/s); up to 130MB/s read speed; USB 3.0 port required. Based on internal testing; performance may be lower depending upon host device. 1MB=1,000,000 bytes
Backward compatible with USB 2.0
Secure file encryption and password protection(2)

Full Specifications

UPC	619659179946
ASIN	B081QSHG1K
Brand	Sandisk
Color	Black
Model Name	Ultra
Read Speed	130 Megabytes Per Second
Unit Count	1.0 Count
Write Speed	10x
Manufacturer	Sandisk Technologies, Inc.
Model Number	SDCZ48-256G-GAM46
Special Feature	Lightweight
Flash Memory Type	USB
Compatible Devices	Laptop
Hardware Interface	USB, USB 2.0, USB 3.0

Ready to buy?

SANDISK 256GB Ultra USB 3.0 Flash Drive - SDCZ48-256G-GAM46, 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.

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*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.