SanDisk Ultra Dual Drive USB Type-C 128GB
- Memory Storage Capacity: 128 GB
- Hardware Interface: USB 3.1 Type C
- Hardware Connectivity Technology: USB Type C
- Number of Packs: 1
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A compact, dual-connector drive that has proven durable in real accidents like a wash cycle, best suited to phone-to-computer transfers over demanding write-heavy work.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B01EZ0X55CModel: SDDDC2-128G-G46Category: USB Flash Drives
Sizes Available
Need a different one? Pick on Amazon →
Overview
The SanDisk Ultra Dual Drive USB Type-C packs 128GB into a small body with a retractable, reversible USB-C connector on one end and a standard USB-A connector on the other, so the same drive works with a phone, tablet or computer.
It targets people moving files off an Android phone as much as backing up a laptop, and pairs with SanDisk's free Memory Zone app for managing content on the phone side. The Type-C connector needs a phone with USB On-The-Go support to work for mobile transfers, worth checking before buying it for that purpose.
- 128GB capacity
- USB-C and USB-A connectors in one drive
- Up to 150MB/s read speed
- SanDisk Memory Zone Android app support
Who it's for
A good fit for anyone juggling USB-C and USB-A devices who wants one drive instead of a cable adapter, especially Android users offloading photos and video. Not the right pick if raw write speed for large file transfers matters more than portability, since a couple of long-term owners flag the write side as slow.
Pros and cons
- Reversible USB-C and USB-A on one drive
- Small enough to carry on a keychain or in a pocket
- Survived a wash-and-dry cycle in more than one owner's account
- SanDisk Memory Zone app for managing Android backups
- Write speeds are slower than the read speeds
- Requires OTG support on the phone side to use the USB-C end for mobile transfers
Performance notes
Rated up to 150MB/s read speed over USB 3.1, with the SanDisk Memory Zone app handling backups from an Android phone that has USB Type-C and OTG support. One long-term reviewer who tracks USB-C and USB-A devices closely calls the write speeds the weak point of an otherwise convenient drive.
Where it stands among usb flash drives
- #5 most-searched brand and model of the 29 usb flash drives lines we track (by search demand, not sales).
From the specs of the 93 usb flash drives we list; not a test result.
Specifications
| Brand | SanDisk |
|---|---|
| Model | SDDDC2-128G-G46 |
| Dimensions & fit | |
| Item Weight | 0.02 pounds |
| Capacity & performance | |
| Memory Storage Capacity | 128 GBhigher than 53% of 88 usb flash drives |
| Construction & materials | |
| Color | Gray |
| Compatibility & installation | |
| Hardware Interface | USB 3.1 Type C |
| Hardware Connectivity Technology | USB Type C |
| Connectivity Technology | USB |
| Compatible Phone Models | Google Play |
| Included components | |
| Number of Packs | 1 |
| Unit Count | 1 |
| Warranty & support | |
| Warranty Description | 5 years |
| Other details | |
| Flash Memory Type | USB |
| Number of Items | 1 |
| Mfr Part Number | SDDDC2-128G-G46 |
Closest rivals on specs
Maspen Swivel USB 2.0 Flash Drive 64GB 2 Pack- Memory Storage Capacity 128 vs 64 GB (+100%)
Lexar A30E USB 3.2 Flash Drive 64GB 3 Pack- Memory Storage Capacity 128 vs 64 GB (+100%)
Frequently asked questions
Does the SanDisk Ultra Dual Drive work with any Android phone?
It needs a phone with a USB Type-C port and On-The-Go (OTG) support for the mobile side to work, so check that before buying it for phone transfers.
Is the write speed as fast as the read speed on this drive?
No, one detailed long-term review flags the write speeds as noticeably behind the rated 150MB/s read performance.
How durable is the SanDisk Ultra Dual Drive?
Multiple owners report it surviving accidental trips through a washing machine and dryer with data intact, though that is not a guarantee for every unit.