SanDisk 128GB Ultra Dual Drive USB Type-C
- USB Flash Drive
- 128 GB
- USB
- 1
- More reviewed than 89%
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.
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How it ranks among the 19 usb flash drives we track
4.5★ across 120,900 Amazon ratings, Bayesian-smoothed toward the category average.
120,900 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
1,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 19 usb flash drives we track - how the scorecard works · full usb flash drives data report. Confidence: high - strong rating volume and complete data.Updated 8 days ago. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
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.
What buyers say
From Amazon customer reviews.
Owners praise the drive for surviving accidents that would kill most storage, with more than one report of it going through a full wash and dry cycle in a pocket and coming out with data intact, plus praise for the compact size and having both connector types in one body. The main complaint is speed: one detailed review calls the write speeds the weak point despite otherwise offering strong value per gigabyte for a dual-connector drive.
Strengths and trade-offs
Drawn from this product's published specifications.
- 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.
Specifications
| Brand | SanDisk |
|---|---|
| Model | SDDDC2-128G-G46 |
| Dimensions & fit | |
| Item Weight | 0.3 ounces |
| Capacity & performance | |
| Memory Storage Capacity | 128 GB |
| Read Speed | 150 megabytes_per_second |
| Construction & materials | |
| Color | Gray |
| Compatibility & installation | |
| Compatible Devices | Compatible with Windows Vista®, Windows® 7, Windows 8, Windows 10, Mac OS X v10.6 and higher. Also compatible with Smartphones, tablets, and other host devices with USB Type-C ports |
| Connectivity Technology | USB |
| Hardware Connectivity Technology | USB Type C |
| Hardware Interface | USB 3.1 Type C |
| Compatible Phone Models | Google Play |
| Included components | |
| Unit Count | 1 |
| Number of Packs | 1 |
| Warranty & support | |
| Warranty Description | 5 years |
| Other details | |
| Flash Memory Type | USB |
| Number of Items | 1 |
| Item Type Name | Sandisk Ultra Dual - USB Flash Drive - 128 GB - Gray |
| Mfr Part Number | SDDDC2-128G-G46 |
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How it compares
This product against the closest alternatives we track in usb flash drives.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| SanDisk 128GB Ultra Dual Drive USB Type-CThis product | 4.5 / 5 | 120,900 | 4.6 / 5 |
| PNY 128GB Turbo Attaché 3 USB 3.0 Flash Drive 2-PackPNY | 4.6 / 5 | 4,675 | 4.7 / 5 |
| Samsung Type-C USB Flash Drive 256GBSamsung | 4.5 / 5 | 17,700 | 4.7 / 5 |
| SANDISK 128GB Ultra Flair USB 3.0 Flash DriveSandisk | 4.6 / 5 | 210,565 | 4.6 / 5 |
| USB Flash Drive 32GBMaspen | 4.5 / 5 | 4,670 | 4.6 / 5 |
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Questions about the SanDisk SDDDC2-128G-G46
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
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.