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SanDisk Ultra Dual 128 GB flash drive with retractable USB 3.0 and micro-USB connectors

SanDisk

SanDisk Ultra Dual SDDD2-128G-GAM46 128GB USB 3.0 micro-USB flash drive

SKU CH-0M7J-3SNDY

128 GB dual-connector flash drive with micro-USB and USB 3.0 ports moves files between OTG Android devices and computers at up to 150 MB/s

  • Total capacity128 GB
  • USB standardUSB 3.0 and micro-USB
  • Max read speedup to 150 MB/s
  • Key featuresFlash Drive for Your OTG-enabled Android Devices This is the
  • Product dimensions0.43 in × 0.78 in × 1.44 in
  • Free up space on OTG Android devices with 128GB extra storage
  • Transfer files between Android and PC or Mac via dual connectors
  • High-speed USB 3.0 moves data to computer at up to 150MB/s
  • Sleek retractable design protects both micro-USB and USB 3.0 plugs
  • Manage and back up files easily with SanDisk Memory Zone app

Dual-connector flash drive for Android and computers

The SanDisk Ultra Dual SDDD2-128G-GAM46 is a 128GB USB flash drive built with a retractable micro-USB connector on one end and a USB 3.0 connector on the other. It is designed for users who need to move files between OTG-enabled Android smartphones or tablets and PC or Mac computers without using a cable or cloud service. The drive adds 128GB of portable storage to a mobile device that supports USB On-The-Go.

Plugs directly into phone and PC ports

The micro-USB end inserts into the charging port of a compatible Android device, while the USB 3.0 end fits standard Type-A ports on laptops and desktops. The USB 3.0 interface is backward-compatible with USB 2.0 ports, so the drive works on older machines at reduced speed. No external power, adapter or driver installation is required for basic file transfer on either platform.

SanDisk Memory Zone app automates backup

The free SanDisk Memory Zone application, available on Google Play, adds automatic camera-roll backup and a file-management interface on the Android device. It lets users copy, move or delete files on the drive from the phone and can offload photos and videos to free internal storage for new captures. The app is optional; the drive functions as standard mass storage without it.

How it compares

Measured against everything we stock in USB Thumb Drives, at today’s prices. Recalculated every night.

Price $14.99
Cheaper than about 83% of the 1,099 comparable items (median $31.99).
Total capacity 128 GB
Higher than about 60% of the 746 comparable items (median 64 GB).
Price per TB $117.11 per TB
Cheaper than about 91% of the 600 comparable items (median $226.48 per TB).

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Specifications

Product
Brand nameSanDisk
Product lineUltra Dual
Model nameSDDD2-128G-GAM46
Total capacity128 GB
Performance
Max read speedup to 150 MB/s
Ports & slots
USB standardUSB 3.0 and micro-USB
Size & build
Product dimensions0.43 in × 0.78 in × 1.44 in

Questions about this item

How quickly does the 150MB/s read speed drop during a long file transfer?

The quoted 150MB/s is a peak read figure; sustained write speeds are lower and will vary with file size and the host device.

Does the drive get hot or draw enough power to affect phone battery during all-day use?

The compact retractable design has no active cooling; it runs warm under continuous load but draws only standard USB bus power.

Which Android devices can actually use the micro-USB connector without an adapter?

Any OTG-enabled Android smartphone or tablet with a micro-USB port works directly; the SanDisk Memory Zone app manages backups.

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