SanDisk

SanDisk SDCZ48-032G 32GB Ultra USB 3.0 Flash Drive

4.7 (43739 reviews)
USB 3.0USB 2.0

The SanDisk Ultra 32GB USB 3.0 flash drive delivers read speeds up to 130MB/s with built-in password protection for secure file transfer.

$22.99*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jun 20, 2026.Price and availability are subject to change.

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Overview

The SanDisk Ultra 32GB USB 3.0 Flash Drive is built for users who need a fast, portable way to move files between computers. With read speeds up to 130MB/s on a USB 3.0 connection, it transfers a full-length movie in well under a minute — roughly 10 times faster than a standard USB 2.0 drive. The drive is fully backward compatible with USB 2.0 ports, so it works with older systems as well, simply at the slower USB 2.0 transfer rate. The compact black design features a retractable USB connector that protects the plug without the need for a separate cap.

Security is a notable inclusion at this price point. The SanDisk Ultra comes with SanDisk SecureAccess software, which allows you to create a password-protected, 128-bit AES encrypted folder on the drive. This makes it a practical choice for carrying sensitive documents, financial records, or personal files without worrying about unauthorized access if the drive is lost. At 32GB, the drive offers enough room for a substantial collection of documents, photos, presentations, and smaller media files, making it a versatile tool for students, professionals, and anyone who regularly moves data between devices.

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
SDCZ48-032G-GAM46
Capacity
32GB
USB Standard
USB 3.0
Read Speed
Up to 130MB/s
Backward Compatibility
USB 2.0
Security
Password protection and 128-bit AES file encryption
Color
Black

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Pros & Cons

👍 Pros

  • Read speeds up to 130MB/s make transferring large files noticeably faster than USB 2.0 alternatives.
  • Built-in password protection and 128-bit AES encryption secure sensitive files stored on the drive.
  • Backward compatible with USB 2.0, ensuring it works with virtually any computer regardless of age.
  • Compact, capless retractable design eliminates the risk of losing a cap and fits easily in a pocket or bag.

👎 Cons

  • 32GB capacity fills up quickly for users working with large video files, disk images, or extensive photo libraries.
  • Write speeds are not specified and are typically slower than the advertised 130MB/s read speed.
  • The retractable slider mechanism can wear out over time with heavy daily use.
  • No USB-C connector means users with newer laptops may need an adapter or dongle.

Frequently Asked Questions

It delivers read speeds up to 130MB/s when connected to a USB 3.0 port, which is up to 10 times faster than standard USB 2.0 drives.
Yes, the SanDisk Ultra is fully backward compatible with USB 2.0 ports, though transfer speeds will be limited to USB 2.0 rates.
Yes, it includes SanDisk SecureAccess software that lets you set a password and encrypt private files stored on the drive using 128-bit AES encryption.
The SanDisk Ultra features a compact black design with a retractable USB connector, so there is no cap to lose.