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SanDisk SDDDC3-1T00 1TB Ultra Dual Drive Go USB-C — main product image
SanDisk SDDDC3-1T00 1TB Ultra Dual Drive Go USB-C
SanDisk SDDDC3-1T00 1TB Ultra Dual Drive Go USB-C
SanDisk SDDDC3-1T00 1TB Ultra Dual Drive Go USB-C
SanDisk SDDDC3-1T00 1TB Ultra Dual Drive Go USB-C
SanDisk SDDDC3-1T00 1TB Ultra Dual Drive Go USB-C
SanDisk SDDDC3-1T00 1TB Ultra Dual Drive Go USB-C
SanDisk

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

USB-CUSB 3.2

Transfer files between USB-C and USB-A devices at up to 400 MB/s with this pocketable 1TB dual-connector flash drive.

$155.99*
✓ In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Sep 05, 2026.Price and availability are subject to change — details.

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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

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Frequently Asked Questions

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.
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.
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.
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.
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.

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