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SANDISK 128GB Ultra Dual Drive, USB-C & USB-A, Up to 150MB/s Read Speeds
Sandisk

SANDISK 128GB Ultra Dual Drive, USB-C & USB-A, Up to 150MB/s Read Speeds

Bottom line: The SANDISK 128GB Ultra Dual Drive ($29.17 on Amazon as of 2026-10-26 16:16 UTC): Dual USB-C + USB-A connectors move files phone-to-PC with no adapter; main trade-off: requires a USB-C port plus OTG support on the phone.

$29.17 on Amazon, checked (price may vary)

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Buy on Amazon — $29.17 Compare to similar external storage

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For external drives and portable storage, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-26. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Dual USB-C + USB-A connectors move files phone-to-PC with no adapter
  • ✓ Up to 150MB/s read speed over USB 3.1 Gen 1
  • ✓ 128GB frees up space on a full Android phone
  • ✓ Retractable design shields both connectors, no lost cap

Cons

  • ✗ Requires a USB-C port plus OTG support on the phone
  • ✗ Read speeds may drop below 150MB/s on slower host devices
  • ✗ SanDisk Memory Zone backup app is Android-only
  • ✗ No stated write-speed figure for large transfers

Manufacturer description

Easily transfer files between smartphones, tablets and computers Free up space on your Android smartphone (Mobile device requires USB Type-C port and On-The-Go (OTG) support) Retractable design with a reversible USB Type-C connector and a traditional USB connector

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SpecPicks Verdict

SpecPicks scored SANDISK 128GB Ultra Dual Drive using a rating × review-volume × price-fit model applied to published specs and reviews 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. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Easily transfer files between smartphones, tablets and computers
  • Free up space on your Android smartphone (Mobile device requires USB Type-C port and On-The-Go (OTG) support)
  • Retractable design with a reversible USB Type-C connector and a traditional USB connector
  • High-speed USB 3.1 performance of up to 150MB/s Read Speeds (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.)
  • SanDisk Memory Zone app for Android (available on Google Play; Download and installation required) lets you easily manage and back up content on your smartphone and tablet

Full Specifications

Size128 GB
BrandSandisk
ColorGray
ModelSDDDC2-128G-G46
Warranty5 Year
UnitCount1
ReleaseDate2018-08-02T00:00:01Z
ManufacturerSandisk Technologies, Inc.
IsAdultProductfalse
ItemPartNumberSDDDC2-128G-G46

Hardware benchmark data

Ready to buy?

SANDISK 128GB Ultra Dual Drive, USB-C & USB-A, Up to 150MB/s Read Speeds is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $29.17

*Price sourced from Amazon.com. Last updated 2026-10-26. Price and availability subject to change.

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SANDISK 128GB Ultra Dual Drive, USB-C & USB-A, Up to 150MB/s Read Speeds
$29.17
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