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Black rectangular USB 3.0 flash drive, 256 GB

SanDisk

SanDisk SDCZ48-256G-A46 256 GB USB 3.0 flash drive

SKU CH-R0KR-6N8Z9 MPN SDCZ48-256G-A46

A 256 GB USB 3.0 flash drive with 128-bit AES encryption and read speeds up to 80 MB/s

  • Product colorBlack
  • Key featuresSold as 1 Each.
  • Up to 80 MB/s read speed with USB 3.0
  • 256 GB capacity stores thousands of photos and hours of video
  • 128-bit AES encryption protects sensitive files
  • Backwards compatible with USB 2.0 ports
  • Compact black design, sold as a single unit

What it is and who it serves

The SanDisk Ultra USB 3.0 flash drive provides 256 GB of portable storage in a black housing. It is aimed at photographers, videographers, designers and anyone who regularly moves large files such as high-resolution photos, HD video or extensive document collections. The drive includes 128-bit AES encryption for data security.

Practical limits of the USB 3.0 interface

Maximum read speed reaches 80 MB/s when connected to a USB 3.0 port, which is up to four times faster than standard USB 2.0 drives. A USB 3.0 port is required to achieve these speeds. Actual performance varies depending on the host device and file types being transferred. The usable capacity is slightly less than the stated 256 GB because 1 GB equals 1,000,000,000 bytes.

Installation ease and common issues

The drive works immediately on any system with a compatible USB port and requires no driver installation or external power. The most common issue is plugging the drive into a USB 2.0 port, which limits transfer speeds to the older standard. Users should also verify that the host device can supply sufficient bus power for reliable operation.

How it compares

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

Price $65.99
Pricier than about 70% of the 1,099 comparable items (median $31.99).

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Specifications

Product
Brand nameSanDisk
Product colorBlack
Size & build
Shipping weight0.02 kg
Package size152 × 102 × 13 mm

Questions about this item

Should I choose the 256 GB capacity or a smaller size for large files?

The 256 GB capacity stores thousands of photos, hours of video and extensive document collections, making it suitable for photographers, videographers and designers who handle large files regularly.

What does the 80 MB/s read speed mean when I copy files to my PC?

You can transfer high-resolution photos, large documents and HD videos up to four times faster than a standard USB 2.0 drive, provided your PC has a USB 3.0 port.

How does the USB 3.0 interface limit real-world performance?

A USB 3.0 port is required to reach the 80 MB/s read speed; actual performance varies with the host device and the drive caps at the USB 3.0 specification.

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