SanDisk SDDDC3-512G-G46PC 512GB Ultra Dual Drive Go USB-C — main product image

SanDisk SDDDC3-512G-G46PC 512GB Ultra Dual Drive Go USB-C

SanDisk

SanDisk SDDDC3-512G-G46PC 512GB Ultra Dual Drive Go USB-C

Name: SanDisk SDDDC3-512G-G46PC 512GB Ultra Dual Drive Go USB-C
Brand: SanDisk
SKU: SDDDC3-512G-G46PC

★★★★★4.6 (26922 reviews)

USB-CUSB 3.1USB 3.0

Transfer files between USB-C and USB-A devices at up to 150MB/s with this 512GB dual-connector flash drive.

$39.99*

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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The SanDisk Ultra Dual Drive Go SDDDC3-512G-G46PC addresses a common frustration for anyone juggling files across modern USB-C devices and older USB-A computers. With a reversible USB Type-C connector on one end and a traditional Type-A connector on the other, this 512GB flash drive lets you move documents, photos, and media between smartphones, tablets, Macs, and PCs without hunting for adapters. The swivel design keeps whichever connector you're not using tucked safely inside the housing, reducing wear and preventing pocket lint from fouling the contacts.

Performance relies on USB 3.1 Gen 1, delivering read speeds up to 150MB/s when connected to a compatible port. While write speeds are lower, the drive handles routine transfers—backing up a phone's photo library, shuttling project files to a colleague's laptop—without significant delays. The companion SanDisk Memory Zone app adds automatic photo backup on supported Android devices, turning the drive into a simple mobile storage expansion tool. At 512GB, there is enough room for extensive media libraries, making this dual-connector drive a versatile addition to any tech bag.

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

512GB

Connector Type

USB Type-C and USB Type-A

Interface

USB 3.1 Gen 1

Read Speed

Up to 150MB/s

Design

Swivel connector protection

Compatibility

USB Type-C and USB Type-A devices (OTG required for mobile)

Model

SDDDC3-512G-G46PC

Pros & Cons

👍 Pros

Dual USB-C and USB-A connectors eliminate the need to carry adapters or separate drives
512GB capacity provides ample space for large file transfers and mobile backups
Swivel design protects both connectors when not in use
USB 3.1 Gen 1 delivers read speeds up to 150MB/s for quick file transfers
SanDisk Memory Zone app enables automatic photo backup from compatible smartphones

👎 Cons

Write speeds are significantly lower than the 150MB/s read speed and vary by capacity
OTG support is required on mobile devices, which not all phones provide
No encryption or password protection built into the hardware
Compact size makes it easy to misplace

Frequently Asked Questions

Does the SanDisk Ultra Dual Drive Go work with smartphones?

Yes, it works with USB Type-C smartphones that support On-The-Go (OTG). Check the SanDisk website for a list of compatible devices.

What read and write speeds can I expect from this drive?

Read speeds reach up to 150MB/s via USB 3.1 Gen 1. Write speeds are lower and vary by capacity and host device conditions.

How does the swivel design protect the connectors?

The drive features a swivel cap that covers whichever connector is not in use, preventing damage and dust accumulation on the exposed plug.

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

No, the drive works as standard USB storage without the app. The Memory Zone app is optional and adds automatic photo backup functionality on Android devices.

Is this drive backward compatible with USB 2.0 ports?

Yes, the USB Type-A connector works with USB 2.0 ports, though transfer speeds will be limited to USB 2.0 rates.