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Tiny black USB-A flash drive, low-profile plug-and-stay design

SanDisk

SanDisk Ultra Fit 512GB USB 3.2 Gen 1 Flash Drive SDCZ430-512G-G46

SKU CH-FCMH-XJBDV MPN SDCZ430-512G-G46

Tiny plug-and-stay drive adds 512GB with up to 400MB/s reads and 128-bit AES encryption

  • Total capacity512 GB
  • USB standardUSB 3.2 Gen 1
  • USB port typesType A
  • Max read speedup to 400 MB/s
  • Security features128bit AES Encryption
  • Product colorBlack

USB Specification USB 3.2 Gen 1

Capacity 512GB

Figure 1 Pack

  • Ultra-compact plug-and-stay design leaves only 0.20" protruding
  • Read speeds up to 400MB/s move large files in seconds
  • 512GB capacity stores extensive media libraries and backups
  • 128-bit AES encryption with password protection secures sensitive data
  • Backwards compatible with USB 3.0 and USB 2.0 ports

Compact 512 GB storage

The SanDisk Ultra Fit SDCZ430-512G-G46 is a USB 3.2 Gen 1 Type A flash drive that adds 512 GB of capacity in a tiny black housing measuring 0.20" x 0.56" x 1.17" and weighing 0.05 oz. Its plug-and-stay form factor suits laptops, game consoles, in-car audio systems and other devices where a low-profile drive can remain inserted permanently.

Encryption and recovery software

128-bit AES encryption protects files with a password via downloadable software, while included RescuePRO Deluxe helps recover accidentally deleted data. Backward compatibility with USB 3.0 and 2.0 ports ensures the drive works across older and newer hosts without extra configuration.

Read speed up to 400 MB/s

Sequential reads reach 400 MB/s, letting you move a full-length movie in under 30 seconds and delivering up to 15 times the throughput of standard USB 2.0 drives. Buyers who need sustained write performance for large datasets or bootable operating-system images should verify write-speed requirements before purchasing.

How it compares

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

Price $56.99
Pricier than about 66% 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 $111.31 per TB
Cheaper than about 91% of the 600 comparable items (median $226.48 per TB).

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Specifications

Product
Brand nameSanDisk
Product lineUltra Fit
Model nameSDCZ430-512G-G46
Total capacity512 GB
Product colorBlack
Performance
Max read speedup to 400 MB/s
Ports & slots
USB standardUSB 3.2 Gen 1
USB port typesType A
Size & build
Product dimensions0.2 in × 0.56 in × 1.17 in
Product weight0.05 oz
Shipping weight0.01 kg
Package size152 × 102 × 1 mm
More details
Security features128bit AES Encryption

Other versions of this model

5 more in the same range

Questions about this item

Does the 512GB Ultra Fit drive need any firmware updates or maintenance over time?

The drive has no moving parts and requires no firmware updates or scheduled maintenance; it works as plug-and-stay storage.

What speed limit appears first when writing large files continuously to this 512GB model?

Write speeds are not rated above the 15X-faster-than-USB-2.0 claim, so sustained writes will settle at the drive's native write throughput rather than the 400MB/s read peak.

How warm does the SDCZ430-512G-G46 get and does it draw much power when left plugged in all day?

The ultra-compact 0.20 x 0.56 x 1.17 inch metal body dissipates heat passively and the drive draws only standard USB bus power with no fan or audible noise.

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