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Small retractable flash drive with micro-USB and USB 3.0 connectors, black plastic finish

SanDisk

SanDisk Ultra Dual Drive m3.0 64GB USB 3.0 micro-USB flash drive

SKU CH-ZDFC-ER3C6

Dual-connector flash drive with micro-USB and USB 3.0 ports frees space on OTG Android devices and moves files to a computer at up to 150 MB/s

  • Total capacity64 GB
  • USB standardUSB 3.0 and micro-USB
  • Max read speedup to 150 MB/s
  • Key featuresCompatible with OTG-enabled Android Devices The SanDisk Ultr
  • Product dimensions0.5 in × 1 in × 1.2 in
  • Product weight0.01 lb (0 kg)
  • Free up space on OTG-enabled Android phones with a micro-USB connector
  • Transfer files to a laptop or PC via the USB 3.0 connector
  • Read speeds up to 150 MB/s move photos and videos quickly
  • Retractable design protects both connectors when not in use
  • SanDisk Memory Zone app simplifies automatic backup and file management

Dual-connector flash drive for Android and PC

The SanDisk Ultra Dual Drive m3.0 combines a micro-USB plug for OTG-enabled Android phones and a USB 3.0 plug for laptops or desktops in a single 64 GB stick. It is built for users who need to offload photos, videos and contacts from a phone without cloud access and then read the same files on a computer.

Retractable design and Memory Zone app

A sliding mechanism hides whichever connector is not in use, protecting both ports from damage and pocket lint. The free SanDisk Memory Zone application from Google Play adds automatic camera-roll backup, contact export and a file browser that can move or delete content directly on the drive.

Plug-and-play on most devices

No driver installation is required on Windows, macOS or Android; the drive appears as mass storage once inserted. The micro-USB end only works on devices that support USB On-The-Go, so phones lacking OTG cannot use it. USB 3.0 speeds fall back to USB 2.0 rates when connected to older ports.

How it compares

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

Price $12.99
Cheaper than about 88% of the 1,099 comparable items (median $31.99).
Total capacity 64 GB
Typical for this category: the median of 746 items is 64 GB.
Price per TB $202.97 per TB
Cheaper than about 58% of the 600 comparable items (median $226.48 per TB).

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Specifications

Product
Brand nameSanDisk
Product lineUltra Dual m3.0
Model nameSDDD3-064G-G46
Total capacity64 GB
Performance
Max read speedup to 150 MB/s
Ports & slots
USB standardUSB 3.0 and micro-USB
Size & build
Product dimensions0.5 in × 1 in × 1.2 in
Product weight0.01 lb (0 kg)

Questions about this item

Will the retractable mechanism or dual connectors wear out with daily insertion and removal?

The drive uses a retractable design that covers both the micro-USB and USB 3.0 connectors when not in use, protecting the contacts from physical wear during daily carry.

What transfer bottleneck appears first when moving large video files continuously?

The USB 3.0 interface caps sustained reads at up to 150 MB/s, so the controller and NAND become the limiting factor once that ceiling is reached.

Does the drive get hot or draw enough power to throttle during all-day backups?

With no moving parts and a 0.01 lb flash-memory design, it stays cool and draws only standard USB bus power, so thermal throttling does not occur.

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