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SANDISK 256GB Ultra Dual Drive, USB-C & USB-A, Up to 150MB/s Read Speeds
Sandisk

SANDISK 256GB Ultra Dual Drive, USB-C & USB-A, Up to 150MB/s Read Speeds

Bottom line: The SANDISK 256GB Ultra Dual Drive ($45.18 on Amazon as of 2026-10-20 16:16 UTC): Dual reversible USB-C and USB-A ends work with phone, tablet, and PC without an adapter; main trade-off: no write-speed rating published, so large transfers onto the drive may lag reads.

$45.18

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Buy on Amazon — $45.18 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 2026-10-20. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Dual reversible USB-C and USB-A ends work with phone, tablet, and PC without an adapter
  • ✓ Rated up to 150MB/s read over USB 3.1 Gen 1
  • ✓ 256GB holds roughly a full phone photo library plus 4K video offloads
  • ✓ SanDisk Memory Zone app for Android maps storage and moves files off the phone

Cons

  • ✗ No write-speed rating published, so large transfers onto the drive may lag reads
  • ✗ Android use requires a USB-C port with OTG support, which older phones lack
  • ✗ 150MB/s needs a USB 3.1 Gen 1 or 3.0 host; USB 2.0 ports throttle it
  • ✗ Retractable slider leaves both connectors exposed to pocket lint when open

Manufacturer description

The flash drive for USB Type C devices 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)

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SpecPicks Verdict

SpecPicks scored SANDISK 256GB 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.

Frequently Asked Questions

Will this work with my Android phone?

It works with Android devices that have a USB Type-C port and support USB On-The-Go (OTG). SanDisk lists both as requirements; if your phone predates USB-C or lacks OTG, the drive will not mount.

How fast is the SanDisk Ultra Dual Drive?

SanDisk rates it at up to 150MB/s read speeds over USB 3.1 Gen 1, based on internal testing. You need a USB 3.1 Gen 1 or USB 3.0 host port to reach that; actual speed varies by device.

Does it need an adapter to plug into a laptop?

No. The drive is dual-ended: retract one side for the reversible USB Type-C connector, the other for a standard USB-A connector, so it plugs directly into most phones and computers.

How much can 256GB actually hold?

256GB is enough for a large phone photo library plus several hours of 4K video offloads. Capacity is the main reason to pick this over the 64GB and 128GB versions of the same drive.

Is there software included, and what is the warranty?

SanDisk offers the free Memory Zone app for Android through Google Play to manage device memory and move content to the drive. Check the current product listing for warranty terms in your region.

Key Features

  • The flash drive for USB Type C devices
  • 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)

Full Specifications

Size256 GB
BrandSandisk
ColorBlack
Model164113
Warranty5 year manufacturer warranty
UnitCount1
ReleaseDate2020-01-01T00:00:01Z
ManufacturerSandisk Technologies, Inc.
IsAdultProductfalse
ItemPartNumber164113

Ready to buy?

SANDISK 256GB 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 — $45.18

*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.

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SANDISK 256GB Ultra Dual Drive, USB-C & USB-A, Up to 150MB/s Read Speeds
$45.18
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