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Black dual-connector USB flash drive with keyring hole

SanDisk

SanDisk Phone Drive 256GB USB 3.2 Gen 1 100MB/s Black

SKU CH-WF3R-Z6593

Dual USB-C and USB-A 256 GB flash drive reads at 100 MB/s for quick phone-to-computer transfers

  • Total capacity256 GB
  • USB standardUSB 3.2 Gen 1
  • Max read speed100 MB/s
  • Write throughput100
  • Security featuresDual USB Connector
  • Product colorBlack

Capacity 256GB

  • Free up phone space with 256GB capacity and dual USB-C & USB-A connectors
  • Move photos fast to computer with read speeds up to 100MB/s
  • Auto-backup photos, videos, contacts via SanDisk app when plugged in
  • Recover accidentally deleted files using the drive and companion app
  • Ultra-light at 0.03 lbs with keyring hole for grab-and-go portability

Dual-connector 256 GB flash drive

This USB 3.2 Gen 1 drive carries a dual USB Type-C and Type-A connector so you can move files between phones, tablets, Macs and PCs without an adapter. It stores 256 GB of photos, videos and documents. A built-in keyring hole keeps it on your keys or bag. The SanDisk app enables automatic backup of contacts, photos and documents.

Thermals noise and power

The drive has no moving parts and draws power directly from the host port, so it runs silently and adds negligible heat to the device. Read and write speeds both reach 100 MB/s under the USB 3.2 Gen 1 interface. Weighing only 0.03 lb, it does not strain a phone or laptop port during extended transfers.

Replaces single-port OTG sticks

It replaces older OTG drives that offer only a Type-C or Type-A plug, removing the need for a separate dongle when switching between device types. The jump is worth it when you regularly shuffle large media libraries between a USB-C phone and a USB-A desktop. Buyers who need hardware encryption or ruggedised casing should look elsewhere.

How it compares

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

Price $43.99
Pricier than about 61% of the 1,099 comparable items (median $31.99).
Total capacity 256 GB
Higher than about 80% of the 746 comparable items (median 64 GB).
Price per TB $171.84 per TB
Cheaper than about 69% of the 600 comparable items (median $226.48 per TB).

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Specifications

Product
Brand nameSanDisk
Model nameSanDisk Phone Drive
Part numberSDDDC6-256G-G46
Total capacity256 GB
Product colorBlack
Performance
Max read speed100 MB/s
Write throughput100
Ports & slots
USB standardUSB 3.2 Gen 1
Size & build
Product weight0.03 lb (0.01 kg)
More details
Security featuresDual USB Connector

Other versions of this model

5 more in the same range

Questions about this item

How do I connect the USB Type-C and Type-A ends to my phone and computer?

Flip the drive to expose the USB Type-C connector for your smartphone or tablet, or the USB Type-A connector for your computer. The keyring hole stays accessible in either orientation.

Does the 256GB SanDisk Phone Drive need firmware updates or battery replacement?

No. The drive has no battery and no updatable firmware. Keep the connectors clean and store it on the keyring hole to avoid physical damage.

At what point will sustained transfers slow down on this 100MB/s drive?

Write speed is also rated at 100MB/s, so the flash memory itself is the first limit during long writes. Thermal throttling can reduce throughput during extended use.

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