SanDisk SDDDC3-1T00 1TB Ultra Dual Drive Go USB-C

Name: SanDisk SDDDC3-1T00 1TB Ultra Dual Drive Go USB-C
Brand: SanDisk
SKU: SDDDC3-1T00-GAM46

Overview

The SanDisk Ultra Dual Drive Go 1TB is a dual-connector flash drive designed to bridge the gap between USB Type-C and USB Type-A devices. One end features a reversible USB-C plug for direct connection to modern smartphones, tablets, and laptops, while the other end conceals a USB-A connector under a swivel cover for compatibility with older computers and peripherals. At just 1.75 x 0.48 x 0.34 inches and 0.16 ounces, the drive is small enough to slip into a pocket or attach to a keychain, yet it packs a full terabyte of storage.

Using a USB 3.2 Gen 1 interface, the drive delivers read speeds up to 400 MB/s, allowing quick access to photos, videos, and documents. Write speeds range from 50 to 350 MB/s depending on conditions, so heavy write workloads will take longer. The companion SanDisk Memory Zone app (available for Android) can automatically back up photos from compatible OTG-enabled smartphones, offering a practical way to free up phone storage on the go. The drive requires no drivers or formatting out of the box and is compatible with any device that recognizes standard USB mass storage.

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 Mac and USB Type-A computers. (Mobile device requires USB Type-C port and On-The-Go (OTG) support. See SanDisk website for list of compatible devices.)

Free up space on your USB Type-C smartphone so you can take more photos (Mobile device requires USB Type-C port and On-The-Go (OTG) support. See SanDisk website for list of compatible devices.)

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

High-performance USB 3.2 Gen 1 drive with up to 400MB/s ultra-fast read speeds (1 MB/s = 1 million bytes per second. Based on internal testing; performance may vary depending upon host device, usage conditions, drive capacity, and other factors. USB Type-C port with USB 3.2 Gen 1 support required.)

Specifications

Brand

SanDisk

Model

SDDDC3-1T00-GAM46

Capacity

1 TB (1024 GB)

Interface

USB 3.2 Gen 1 (USB 3.1 Type-C / USB Type-A)

Read Speed

Up to 400 MB/s

Write Speed

50–350 MB/s

Connectors

USB Type-C (reversible) + USB Type-A (swivel)

Dimensions

1.75 x 0.48 x 0.34 inches

Weight

0.16 ounces

Color

Black

Compatible Devices

Smartphones, Tablets, Laptops, Desktops (USB-C OTG required for mobile)

UPC

619659198176

Similar Products

Other products from the same family that visitors often consider:

Currently Unavailable

Pros & Cons

👍 Pros

Dual USB-C and USB-A connectors eliminate the need for adapters when switching between modern and legacy devices
1TB capacity provides substantial portable storage in an extremely compact form factor
Read speeds up to 400 MB/s via USB 3.2 Gen 1 enable fast file transfers
Lightweight at just 0.16 ounces and small enough to carry on a keychain
SanDisk Memory Zone app offers automatic photo backup from compatible smartphones

👎 Cons

Write speeds (50–350 MB/s) are significantly slower than read speeds, which can slow large file transfers to the drive
The USB-C connector lacks a protective cap and remains exposed when not in use
No built-in hardware encryption — data protection relies on optional software solutions
Higher price per gigabyte compared to traditional USB-A-only flash drives at this capacity

Frequently Asked Questions

Can I use this drive with both USB-C and USB-A devices?

Yes. The Ultra Dual Drive Go has a reversible USB Type-C connector on one end and a traditional USB Type-A connector concealed under a swivel cover, so it works with both port types without any adapters.

What is the write speed of the 1TB model?

Write speeds range from 50 to 350 MB/s depending on the host device, usage conditions, and file types. The advertised 400 MB/s figure refers to read speed only.

Does this drive work with smartphones?

It works with USB Type-C smartphones and tablets that support USB On-The-Go (OTG). Check SanDisk's compatibility list to confirm your specific device is supported.

Is the SanDisk Memory Zone app required to use the drive?

No. The drive functions as standard USB storage without any software. The Memory Zone app is optional and provides automatic photo backup from compatible Android devices.

Does the swivel design protect both connectors when not in use?

The swivel cover protects the USB-A connector when stowed. The USB-C connector remains exposed but is recessed within the housing for some protection.