SanDisk Ultra 64GB
Score: 73/100
SanDisk Ultra Flair 256GB
Score: 74/100Rankings
The SanDisk Ultra Flair 256 GB USB-3.0 flash drive offers fast 150 MB/s read speeds in a sturdy metal case with built-in password protection. Its write performance is unspecified and it only features a USB-A connector, requiring an adapter for USB-C devices. Ideal for users who prioritize speed and durability on traditional laptops.
The SanDisk Ultra 64 GB USB 3.0 flash drive offers fast 130 MB/s read speeds, a capless slide-out design, and built-in encryption software, all backed by a 5-year warranty. Its write speed is modest at 40 MB/s and performance can suffer on older USB 2.0 ports. Best suited for students and professionals needing portable storage with basic security.
| Attribute | | |
|---|---|---|
64 GB | 256 GBbest | |
130 MB/s | 150 MB/sbest | |
40 MB/sbest | — | |
| ↓ lower better | 8.5 g | 4.5 gbest |
5 yearsbest | 5 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 64 GB | 256 GB |
Performance(1) | ||
Read Speed (MB/s) | 130 MB/s | 150 MB/s |
Connectivity(1) | ||
Interface Type | USB 3.0 | USB Type-A |
Build & Design(2) | ||
Weight (g) | 8.5 g | 4.5 g |
Dimensions (L×W×H) (mm) | 69.09×22.1×9.91 mm mm | 42.93×12.95×7.11 mm |
Compatibility(1) | ||
OS Compatibility | Windows 10+, macOS 12+, Android 8+, iOS 13+ | Windows, macOS |
Power & Environment(1) | ||
Operating Temperature (°C) | 0-45 °C | 0-35°C °C |
Products in the top-left offer the best value (high score, low price).
Professional reviewers consistently commend the SanDisk Ultra 64GB USB-A flash drive for its solid 130 MB/s read performance, reliable 40 MB/s write speed, and the added value of security and recovery software. They note the longer 5-year warranty as a differentiator, while pointing out the lack of detailed endurance data and the drop in speed on legacy USB 2.0 ports.
Everyday users love the fast read speeds and the generous 64 GB capacity for media and backups, highlighting the convenient capless slide-out design and the usefulness of SecureAccess. Common complaints revolve around slower write speeds, occasional recognition hiccups on older ports, and the fact that formatted usable space is a few gigabytes less than the advertised capacity.
“up to 100-130MB/s feels blazing for files/movies”
“full movie in <40s”
Professional reviewers commend the Ultra Flair 256GB for its high read speed, rugged metal construction, and SecureAccess encryption, noting it handles 4K movie transfers in seconds. However, they criticize the lack of a USB-C option and the omission of concrete write-speed data, which leaves part of the performance picture incomplete.
Everyday users generally express satisfaction with the drive's speed, durability, and compactness, frequently highlighting the convenience of password protection. While no major complaints dominate, users note the missing cap and the need for an adapter on USB-C-only computers.
