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

SanDisk

SanDisk Ultra Fit 16GB USB 3.1 Flash Drive SDCZ430-016G-G46

SKU CH-SK3A-V9RYY MPN SDCZ430-016G-G46

Compact 16 GB USB 3.1 drive reads up to 130 MB/s and stays plugged into laptops or consoles

  • Total capacity16 GB
  • USB standardUSB 3.1 (Gen 1)
  • USB port typesType A
  • Max read speedup to 130 MB/s
  • Security features128bit AES Encryption
  • Product colorBlack

USB Specification USB 3.1

Capacity 16GB

Figure 1 Pack

  • Plug-and-stay design leaves only 0.20" protruding from laptops and consoles
  • Read speeds up to 130MB/s transfer large files in seconds
  • 128-bit AES encryption with SecureAccess software protects private data
  • Writes up to 15x faster than USB 2.0 drives
  • Weighs just 0.05 oz for truly portable storage

Compact plug-and-stay storage

The SanDisk Ultra Fit SDCZ430-016G-G46 is a 16GB USB 3.1 (Gen 1) flash drive with a Type A connector. Its low-profile black housing measures 0.20" x 0.56" x 1.17" and weighs 0.05 oz, allowing it to remain inserted in laptops, tablets, TVs, gaming consoles or car audio systems without protruding.

Sustained transfer behaviour

Read speeds reach up to 130MB/s while write performance is rated up to 15 times faster than standard USB 2.0 drives. The manufacturer notes a full-length movie can move to the drive in less than 30 seconds. Actual throughput will vary with the host controller, file sizes and thermal limits during extended sessions.

USB 3.1 Gen 1 practical limits

The drive operates within the USB 3.1 Gen 1 specification, capping the theoretical bus bandwidth at 5 Gbps. Real-world speeds depend on the host port implementation, cable quality and system overhead. 128-bit AES encryption via SanDisk SecureAccess software adds a processing layer for secured files.

How it compares

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

Price $19.99
Cheaper than about 72% of the 1,099 comparable items (median $31.99).
Total capacity 16 GB
Lower than about 90% of the 746 comparable items (median 64 GB).
Price per GB $1.25 per GB
Cheaper than about 62% of the 146 comparable items (median $1.88 per GB).

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Specifications

Product
Brand nameSanDisk
Product lineUltra Fit
Model nameSDCZ430-016G-G46
Total capacity16 GB
Product colorBlack
Performance
Max read speedup to 130 MB/s
Ports & slots
USB standardUSB 3.1 (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 × 10 mm
More details
Security features128bit AES Encryption

Other versions of this model

5 more in the same range

Questions about this item

Does the USB 3.1 Gen 1 interface draw much power or get hot when left plugged into a laptop all day?

The Ultra Fit uses a low-power USB 3.1 Gen 1 controller and its tiny 0.20" x 0.56" x 1.17" body has no moving parts, so it stays cool and draws minimal current during continuous use.

What must my device already have to use the Type A connector and 128-bit AES encryption?

You need a free USB Type A port and the ability to run the SanDisk SecureAccess software to create the encrypted vault.

Will the 130 MB/s read speed still work if I plug it into an older USB 2.0 port on my TV or car stereo?

It will work but fall back to USB 2.0 speeds; the 130 MB/s read rate and 15× faster write claim require a USB 3.1 Gen 1 or 3.2 port.

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