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Sandisk

SANDISK 128GB Ultra Dual Drive m3.0, microUSB and USB Type-A, High-speed USB 3.0, Retractable design for Android Devices and Computers - SDDD3-128G-G46, Black

Name: SANDISK 128GB Ultra Dual Drive m3.0, microUSB and USB Type-A, High-speed USB 3.0, Retractable design for Android Devices and Computers
Brand: Sandisk
SKU: B01M0QR22B
Price: 24.85 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-06

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$24.85

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View Current Price on Amazon → Compare to similar external storage

*Price sourced from Amazon.com. Last updated 2026-08-17. Price and availability subject to change.

Bottom line: The SANDISK 128GB Ultra Dual Drive m3.0, microUSB and USB Type-A, High-speed USB 3.0, Retractable design for Android Devices and Computers - SDDD3-128G-G46, Black is a niche pick — read recent reviews before buying in the external storage category, priced around $24.85. Compare close alternatives before committing.

The SanDisk Ultra Dual Drive m3.0 solves the "storage full" problem on Android phones and tablets without cloud uploads or a laptop in the middle. A retractable body puts a micro-USB connector on one end and a full-size USB 3.0 connector on the other, so you can pull photos and video off an OTG-enabled Galaxy S7, Note 5, LG Stylo, HTC One, or Moto G and drop them straight onto a PC or Mac. SanDisk rates transfers at up to 150MB/s from the drive to a computer, fast enough to move a full-length movie noticeably quicker than a USB 2.0 stick, and the USB 3.0 end stays backward-compatible with…

SpecPicks Verdict

SpecPicks scored SANDISK 128GB Ultra Dual Drive m3.0, microUSB and USB Type-A… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the external storage category. Sandisk's external storage lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

Common buyer scenarios for external storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ Retractable design with dual microUSB and USB 3.0 connectors
✓ Backed by Sandisk's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

Compatible devices: Samsung Galaxy S7 Edge/S7/S6 Edge/S6/S5/S4/S3, Galaxy Note 5/4/2/3/J3/J7/J8/A3/A5/A7, BLU , LG Stylo 2/3, K20/K30/K40, G4/G3/G2, HTC One M7/M8/M9/M9+/A9/E8, Motorola Turbo, G6 Play, Moto X, Moto G, Moto E, Motorola Samsung Tab 4/Tab 3/Tab A/Tab E/Tab S2/Tab Pro/Tab S and other devices with Micro USB port
Free up space on your Android Phone (Requires device with micro-USB port and On-The-Go (OTG) support. See official SanDisk website for list of compatible devices.)
Retractable design with dual microUSB and USB 3.0 connectors
High-speed USB 3.0 performance with up to 150MB/s file transfer from drive to computer (Write speeds lower and varies by capacity. Micro-USB port with USB 3.2 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.)
SanDisk Memory Zone application (available on Google Play) lets you easily manage your photos and videos (Download and installation required. Set up automatic backup within app settings. See SanDisk Memory Zone website for details.)

Full Specifications

Brand	Sandisk
Color	Black
Turbo	Yes
Weight	128g
Model Name	SDDD3-128G-G46
Read Speed	150 megabytes_per_second
Unit Count	1 Count
Write Speed	150 megabytes_per_second
Connectivity	USB
Model Number	SDDD3-128G-G46
Compatibility	Android
Built-In Media	usb dual drive
Item Type Name	SanDisk Ultra 128GB Dual Drive m3.0 (SDDD3-128G-G46)
Mfr Part Number	SDDD3-128G-G46
Special Feature	Retractable Connector
Flash Memory Type	USB
Hardware Interface	USB
Additional Features	Retractable Connector
Warranty Description	5 Year
Compatible Phone Models	Google Play

Ready to buy?

SANDISK 128GB Ultra Dual Drive m3.0, microUSB and USB Type-A, High-speed USB 3.0, Retractable design for Android Devices and Computers - SDDD3-128G-G46, Black is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-08-17. Price and availability subject to change.