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Black SanDisk Ultra CZ48 512 GB USB 3.0 flash drive, rectangular stick with rounded edges, matte finish

SanDisk

SanDisk Ultra CZ48 512GB USB 3.0 Flash Drive

SKU CH-Q9AY-EGC1K

A 512 GB USB 3.0 flash drive with read speeds up to 130 MB/s and 128-bit AES encryption via included SanDisk SecureAccess software

  • Total capacity512 GB
  • USB standardUSB 3.0
  • Max read speedup to 130 MB/s
  • Security features128bit AES Encryption
  • Product colorBlack
  • Key featuresMove Files Quickly with Faster Transfer Speeds With transfer
  • Up to 130MB/s read speed moves large files quickly
  • USB 3.0 interface transfers data up to 10 times faster than USB 2.0
  • 512GB capacity stores extensive media libraries and backups
  • 128-bit AES encryption with SecureAccess software protects sensitive data
  • Compact 0.43" x 0.84" x 2.24" design fits easily in any pocket

512 GB USB 3.0 Flash Drive

The SanDisk Ultra CZ48 provides 512 GB of portable storage with a USB 3.0 interface. Read speeds reach up to 130 MB/s for quick file access. It includes 128-bit AES encryption and SanDisk SecureAccess software for password protection. The compact black design suits everyday carry.

Upgrade from USB 2.0 drives

This drive transfers files up to 10 times faster than standard USB 2.0 flash drives. The jump is worth it when moving large media libraries or backups between devices. It replaces slower, lower-capacity sticks that bottleneck workflow. Users staying on USB 2.0 ports will not see the full speed benefit.

Plug-and-play installation

Insert the drive into any USB Type-A port; no driver installation is required on modern operating systems. The retractable connector protects the contacts during transport. The small form factor fits tight ports but can block adjacent sockets on crowded hubs. Encryption setup requires running the included software on a host computer.

How it compares

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

Price $81.99
Pricier than about 75% of the 1,099 comparable items (median $31.99).
Total capacity 512 GB
Higher than about 90% of the 746 comparable items (median 64 GB).
Price per TB $160.14 per TB
Cheaper than about 73% of the 600 comparable items (median $226.48 per TB).

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Specifications

Product
Brand nameSanDisk
Product lineUltra
Model nameSDCZ48-512G-G46
Total capacity512 GB
Product colorBlack
Performance
Max read speedup to 130 MB/s
Ports & slots
USB standardUSB 3.0
Size & build
Product dimensions0.43 in × 0.84 in × 2.24 in
Product weight0.03 lb (0.01 kg)
More details
Security features128bit AES Encryption

Questions about this item

What size USB port does the 2.24-inch CZ48 drive need?

It plugs into any standard USB 3.0 Type-A port and works with USB 2.0 ports at lower speed.

How do I enable the 128-bit AES encryption on the drive?

Install the included SanDisk SecureAccess software, set a password, then drag files into the vault to encrypt them.

Does the 512 GB flash drive require any ongoing maintenance?

No moving parts mean no routine maintenance; keep the connector clean and eject the drive before unplugging.

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