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SanDisk SDDDC3-256G-G46 256GB Ultra Dual Drive Go — main product image
SanDisk SDDDC3-256G-G46 256GB Ultra Dual Drive Go
SanDisk SDDDC3-256G-G46 256GB Ultra Dual Drive Go
SanDisk SDDDC3-256G-G46 256GB Ultra Dual Drive Go
SanDisk SDDDC3-256G-G46 256GB Ultra Dual Drive Go
SanDisk SDDDC3-256G-G46 256GB Ultra Dual Drive Go
SanDisk SDDDC3-256G-G46 256GB Ultra Dual Drive Go
SanDisk

SanDisk SDDDC3-256G-G46 256GB Ultra Dual Drive Go

★★★★★4.4 (27029 reviews)
USB 3.1USB 3.0

Bridge USB-C and USB-A devices effortlessly with this 256GB dual-connector flash drive delivering 150MB/s read speeds.

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Overview

The SanDisk Ultra Dual Drive Go 256GB is a purpose-built solution for anyone who regularly transfers files between USB-C and USB-A devices. One end features a reversible USB Type-C connector for modern smartphones, tablets, and laptops, while the other provides a standard USB Type-A plug for older computers and peripherals. This dual-interface design eliminates adapter dongles and makes it simple to move photos, videos, documents, and music across your entire device ecosystem in seconds.

With USB 3.1 Gen 1 performance delivering read speeds up to 150MB/s, transferring large files is quick and efficient. The 256GB capacity provides ample room for thousands of photos, hours of video, or extensive document libraries. A compact swivel design protects both connectors when not in use and keeps the drive pocket- and keychain-friendly. Paired with the free SanDisk Memory Zone app, you can set up automatic photo backups from your Android or iOS device, freeing up phone storage without any manual effort. The drive is compatible with Android 11+, iOS 10.0.2+, macOS 10.9+, and Windows 10+, covering virtually every platform you are likely to encounter.

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.

Compatibility: USB Type-C devices (phones, laptops, and tablets); iOS 10.0.2+; Android 11+; macOSv.10.9+; Windows 10+

Specifications

Brand
SanDisk
Model
SDDDC3-256G-G46
Capacity
256GB
Connectors
USB Type-C and USB Type-A
USB Standard
USB 3.1 Gen 1
Read Speed
Up to 150MB/s
Compatibility
iOS 10.0.2+, Android 11+, macOS 10.9+, Windows 10+
Software
SanDisk Memory Zone app (automatic photo backup)

Pros & Cons

👍 Pros

  • Dual USB-C and USB-A connectors eliminate the need for adapters when switching between devices
  • 150MB/s read speed transfers large files quickly over USB 3.1 Gen 1
  • Compact swivel design protects connectors and fits easily on a keychain
  • Broad compatibility spanning Android, iOS, macOS, and Windows devices
  • SanDisk Memory Zone app provides convenient automatic photo backup from smartphones

👎 Cons

  • Write speeds are noticeably slower than read speeds and are not specified by the manufacturer
  • Small form factor makes it easy to misplace
  • No built-in encryption or hardware password protection on this model
  • Performance drops significantly when used in older USB 2.0 ports

Frequently Asked Questions

Yes, it features a reversible USB Type-C connector on one end and a traditional USB Type-A connector on the other, so you can plug it into phones, tablets, laptops, and desktops without any adapter.
Read speeds reach up to 150MB/s when connected to a USB 3.1 Gen 1 or USB 3.0 port. Write speeds are lower and vary by capacity and host device conditions.
It works with USB Type-C smartphones that support On-The-Go (OTG) functionality. Compatible with Android 11+ and iOS 10.0.2+. Check SanDisk's website for a full list of verified devices.
Yes, the SanDisk Memory Zone app is available for download and enables automatic photo backup from your smartphone to the flash drive.
The drive uses a swivel design that protects the USB-C connector when not in use, eliminating the need for a removable cap that could get lost.

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