
Kingston DataTraveler Max 1TB
Score: 88/100
SanDisk Ultra Fit 512GB
Score: 89/100Rankings

The SanDisk Ultra Fit 512 GB USB 3.2 Gen 1 flash drive packs massive storage into an ultra-compact, low-profile design. It delivers excellent read performance and encryption, but its write speeds are notably slow and the plastic case offers limited ruggedness.

A high-performance 1 TB USB-C flash drive delivering SSD-class speeds in a compact, sliding-connector form factor. It excels in speed and convenience but is bulkier, can heat up, and lacks built-in encryption.
| Attribute | ![]() | ![]() |
|---|---|---|
1,024 GBbest | 512 GB | |
1,000 MB/sbest | 400 MB/s | |
900 MB/sbest | — | |
60 monthsbest | 60 monthsbest | |
| ↓ lower better | 12 g | 10 gbest |
| ↓ lower better | 82.17 mm | 29.7 mmbest |
| ↓ lower better | 22 mm | 14.2 mmbest |
| ↓ lower better | 9.02 mm | 5.1 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Storage(1) | ||
Capacity (GB) | 1024 GB | 512 GB |
Performance(2) | ||
Read Speed (MB/s) | 1000 MB/s | 400 MB/s |
Write Speed (MB/s) | 900 MB/s | 4-60 MB/s |
Security(1) | ||
Encryption Support | false | true |
Physical(4) | ||
Weight (g) | 12 g | 10 g |
Length (mm) | 82.17 mm | 29.7 mm |
Width (mm) | 22.00 mm | 14.2 mm |
Height (mm) | 9.02 mm | 5.1 mm |
Connectivity(1) | ||
USB Interface | USB 3.2 Gen 2 | USB 3.2 Gen 1 |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, Linux, Chrome OS | Windows; macOS; consoles; smart TV; car audio |

Products in the top-left offer the best value (high score, low price).

Professional reviewers laud the DataTraveler Max for delivering SSD-class speeds in a USB-C flash drive, calling it a game-changing product that rivals external SSDs, while noting the plastic construction, exposed half-connector, and need for a USB 3.2 Gen 2 host to unlock its full potential.
Everyday users are overwhelmingly positive about the drive's blazing fast transfers and convenient sliding design, often highlighting how quickly large video files move; common complaints revolve around heating, bulkier size, lack of encryption, and a cheap plastic feel.

“Perfect for my PS5 - fits behind the panel and stores game saves and screenshots.”

“I leave it in my laptop all the time - barely sticks out.”

“Fast enough to play 4K videos directly from the drive.”




Professional reviewers commend the Ultra Fit for its minuscule size and impressive read performance, positioning it as an ideal solution for devices with limited space, while warning that the write speed is a major bottleneck.
Everyday users love the drive's ability to stay hidden in laptops, consoles, and car stereos while providing ample storage and fast media playback. The dominant complaint centers on painfully slow write speeds and the difficulty of removing the drive once fully inserted.