SanDisk

SanDisk SDDDC3-256G Ultra Dual Drive Go 256GB USB-C

4.6 (27950 reviews)
USB-CUSB 3.1USB 3.0

Seamlessly Transfer Files Between Devices Introducing the SanDisk 256GB Ultra Dual Drive Go USB Type-C Flash Drive. Designed for ultimate convenience, this 2-in-1 flash drive lets you easily move files between USB Type-C smartphones, tablets, Macs, and USB Type-A computers. Specifications: ...

$26.69*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

Seamlessly Transfer Files Between Devices

Introducing the SanDisk 256GB Ultra Dual Drive Go USB Type-C Flash Drive. Designed for ultimate convenience, this 2-in-1 flash drive lets you easily move files between USB Type-C smartphones, tablets, Macs, and USB Type-A computers.

Specifications:

  • Brand: SanDisk
  • Model: SDDDC3-256G-G46G
  • Capacity: 256GB
  • Connector Type: USB Type-C and USB Type-A
  • USB Standard: USB 3.1 Gen 1
  • Read Speed: Up to 150MB/s

Key Features

The 2-in-1 flash drive with a reversible USB Type-C and a traditional Type-A connector.

Seamlessly move content between your USB Type-C smartphone, tablets and Macs and USB Type-A computers(2); (2) Mobile device requires USB Type-C port and On-The-Go (OTG) support. See the official SanDisk website for a list of compatible devices.

Free up space on your USB Type-C smartphone(2)

Automatically back up photos with SanDisk Memory Zone app(3); (3) Download and installation of SanDisk Memory Zone app required.

High-performance USB 3.1 Gen 1 drive with 150MB/s read speeds(1); (1) Read speeds up to 150MB/s. Write speed lower and vary by capacity. USB Type-C port with USB 3.1 Gen 1/ USB 3.0 support required. Based on internal testing; performance may be lower depending upon host device, interface, usage conditions and other factors. 1MB = 1,000,000 bytes.

Specifications

Capacity
256GB
USB Connectors
USB Type-C, USB Type-A
USB Standard
USB 3.1 Gen 1
Read Speed
Up to 150MB/s
Mobile Device Requirement
USB Type-C port, OTG support
Backup Feature
Automatic photo backup with SanDisk Memory Zone app

Pros & Cons

👍 Pros

  • Features a versatile 2-in-1 design with both a reversible USB Type-C and a traditional Type-A connector.
  • Allows seamless content transfer between USB Type-C smartphones, tablets, Macs, and USB Type-A computers.
  • Provides an effective way to free up storage space on USB Type-C smartphones.
  • Enables automatic photo backups when used with the SanDisk Memory Zone app, enhancing data security.
  • Delivers high-performance with USB 3.1 Gen 1, achieving read speeds of up to 150MB/s.
  • Offers a substantial 256GB storage capacity for various files and media.

👎 Cons

  • Write speeds are lower than read speeds and may vary by capacity, impacting larger file transfers.
  • Requires a USB Type-C port with On-The-Go (OTG) support on mobile devices for full functionality.
  • The SanDisk Memory Zone app requires separate download and installation for automatic photo backup.
  • Actual performance may be lower depending on the host device, interface, usage conditions, and other factors.
  • Compatibility with USB Type-C devices relies on checking the official SanDisk website for a list of supported models.

Frequently Asked Questions

The SanDisk Ultra Dual Drive Go features a 2-in-1 design with both a reversible USB Type-C connector and a traditional USB Type-A connector.
Yes, you can seamlessly move content between USB Type-C smartphones, tablets, and Macs, and USB Type-A computers, provided your mobile device supports USB Type-C and On-The-Go (OTG).
This specific model, the SanDisk SDDDC3-256G, offers a substantial storage capacity of 256GB.
This is a high-performance USB 3.1 Gen 1 drive that delivers read speeds of up to 150MB/s.
Yes, it supports automatic photo backups when used in conjunction with the SanDisk Memory Zone app, which requires download and installation.
Your mobile device requires a USB Type-C port and On-The-Go (OTG) support for full functionality. It is recommended to check the official SanDisk website for a list of compatible devices.
No, the write speed is typically lower than the read speed and may vary depending on the capacity and other factors.