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Black rectangular USB 3.0 flash drive with silver connector, 32GB capacity

SanDisk

SanDisk Ultra CZ48 32GB USB 3.0 Flash Drive

SKU CH-Z7MM-SFDJX

A 32GB USB 3.0 flash drive with read speeds up to 100MB/s and 128-bit AES encryption

  • Total capacity32 GB
  • USB standardUSB 3.0
  • Max read speedup to 100 MB/s
  • Security features128bit AES Encryption
  • Key featuresMove Files Quickly with Faster Transfer Speeds With transfer
  • Product dimensions0.43 in × 0.84 in × 2.24 in
  • Transfer large files faster with read speeds up to 100MB/s
  • Keep private data secure using 128-bit AES encryption and SanDisk SecureAccess software
  • Works with USB 3.0 and USB 2.0 ports for broad compatibility
  • Compact design at 0.43" x 0.84" x 2.24" fits easily in a pocket
  • ReadyBoost support helps improve system responsiveness on Windows

Compact 32GB USB 3.0 Drive

The SanDisk Ultra CZ48 is a 32GB flash drive built for people who move documents, photos and videos between USB 3.0 ports and want noticeably shorter wait times. It also works on older USB 2.0 sockets, so the same stick serves mixed environments.

Retractable metal plug

A sliding metal connector protects the USB interface when the drive is tossed in a bag, and the 0.43" x 0.84" x 2.24" body weighs 0.48 oz. The slim profile sits flush beside adjacent ports on laptops and does not block neighbouring sockets on dense hubs.

SanDisk SecureAccess adds 128-bit AES file vault

The bundled SecureAccess software creates a password-protected folder that encrypts selected files with 128-bit AES, letting confidential data share the same stick as public media. ReadyBoost support also lets Windows cache system files on the drive for a modest responsiveness lift on compatible PCs.

How it compares

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

Price $23.99
Cheaper than about 63% of the 1,099 comparable items (median $31.99).
Total capacity 32 GB
Lower than about 70% of the 746 comparable items (median 64 GB).
Price per TB $749.69 per TB
Pricier than about 87% of the 600 comparable items (median $226.48 per TB).

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Specifications

Product
Brand nameSanDisk
Product lineUltra
Model nameSDCZ48-032G-UAM46
Total capacity32 GB
Performance
Max read speedup to 100 MB/s
Ports & slots
USB standardUSB 3.0
Size & build
Product dimensions0.43 in × 0.84 in × 2.24 in
Product weight0.48 oz
More details
Security features128bit AES Encryption
Ready boostYes

Questions about this item

What real-world ceiling does the USB 3.0 interface impose on this drive's read speed?

The USB 3.0 interface supports much higher bandwidth, but this drive's controller limits read performance to 100 MB/s.

What physical space does the SDCZ48-032G-UAM46 need inside a USB port?

The drive measures 2.24 inches long, 0.84 inches wide and 0.43 inches thick, so it fits any standard Type-A socket without blocking adjacent ports.

How do I enable the 128-bit AES encryption on this flash drive, and what step do people skip?

Run the included SanDisk SecureAccess installer, create a vault password, then drag files into the vault window — skipping the drag step leaves files unprotected.

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