Brands Guides About
SanDisk SDCZ48-256G-GAM46 256GB Ultra USB 3.0 Flash Drive — main product image
SanDisk SDCZ48-256G-GAM46 256GB Ultra USB 3.0 Flash Drive
SanDisk SDCZ48-256G-GAM46 256GB Ultra USB 3.0 Flash Drive
SanDisk SDCZ48-256G-GAM46 256GB Ultra USB 3.0 Flash Drive
SanDisk SDCZ48-256G-GAM46 256GB Ultra USB 3.0 Flash Drive
SanDisk SDCZ48-256G-GAM46 256GB Ultra USB 3.0 Flash Drive
SanDisk SDCZ48-256G-GAM46 256GB Ultra USB 3.0 Flash Drive
SanDisk

SanDisk SDCZ48-256G-GAM46 256GB Ultra USB 3.0 Flash Drive

USB 3.0USB 2.0

Store and transfer large files at high speed with 256GB of portable USB 3.0 storage from SanDisk.

$41.98*$67.99Save 38%
✓ In Stock on Amazon.com
View on Amazon

*Price sourced from Amazon.com. Last updated:Sep 05, 2026.Price and availability are subject to change — details.

Affiliate Disclosure: As an Amazon Associate, Studio Supplies earns from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.

Notice a mistake? Let Us Know

Overview

The SanDisk SDCZ48-256G-GAM46 Ultra USB 3.0 Flash Drive packs 256GB of storage into a slim, portable form factor that slips easily into a pocket or laptop bag. With read speeds up to 130MB/s over USB 3.0, transferring large files such as HD video, photo libraries, or project backups takes a fraction of the time compared to standard USB 2.0 drives. The drive is also fully backward compatible with USB 2.0 ports, so it works seamlessly across older and newer systems alike.

Security-conscious users will appreciate the included SanDisk SecureAccess software, which provides 128-bit AES file encryption and password protection to keep private documents safe. Whether you are a student shuttling coursework between computers, a professional backing up critical files, or a traveler carrying media for offline entertainment, this drive delivers the capacity, speed, and reliability that SanDisk is known for in a no-fuss package.

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)

Specifications

Brand
SanDisk
Model
SDCZ48-256G-GAM46
Capacity
256GB
Interface
USB 3.0
Backward Compatibility
USB 2.0
Read Speed
Up to 130MB/s
Security
Secure file encryption and password protection
Compatibility
PC, Mac

Similar Products

Other products from the same family that visitors often consider:

SanDisk SDCZ480-256G-G46 256GB Ultra USB Type-C Flash Drive✓ Available

SanDisk SDCZ480-256G-G46 256GB Ultra USB Type-C Flash Drive

$43.99
View on Amazon →
SanDisk 256GB_FD Ultra Fit USB 3.1 Flash Drive w/ LanyardCurrently Unavailable

SanDisk 256GB_FD Ultra Fit USB 3.1 Flash Drive w/ Lanyard

Check on Amazon →
SanDisk SDCZ74-256G Ultra Luxe 256GB USB 3.1 Flash DriveCurrently Unavailable

SanDisk SDCZ74-256G Ultra Luxe 256GB USB 3.1 Flash Drive

Check on Amazon →
SanDisk 256GB Ultra Dual Drive Luxe USB-C Flash Drive✓ Available

SanDisk 256GB Ultra Dual Drive Luxe USB-C Flash Drive

$50.94
View on Amazon →
SanDisk SDCZ880-256G-GAM46 256GB Extreme PRO USB 3.2 Flash DriveCurrently Unavailable

SanDisk SDCZ880-256G-GAM46 256GB Extreme PRO USB 3.2 Flash Drive

Check on Amazon →

Frequently Asked Questions

The drive delivers read speeds up to 130MB/s when connected to a USB 3.0 port. Actual speeds may vary depending on your host device and file types.
Yes, the SDCZ48-256G is backward compatible with USB 2.0 ports, though transfer speeds will be limited to USB 2.0 rates.
Yes, it includes SanDisk SecureAccess software for secure file encryption and password protection, allowing you to keep sensitive files private.
Yes, it is compatible with both PC and Mac computers out of the box.

Related Products