SanDisk Ultra 64GB
Score: 73/100
Amazon Basics USB Flash Drive 128 GB
Score: 73/100Rankings
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.
A 128 GB USB 3.1 flash drive with a retractable connector and fast 130 MB/s read speed. Write speed is modest at 30 MB/s and usable space shrinks after formatting. Best suited for general consumers needing portable high-capacity storage.
| Attribute | | |
|---|---|---|
64 GB | 128 GBbest | |
130 MB/sbest | 130 MB/sbest | |
40 MB/sbest | 30 MB/s | |
| ↓ lower better | 8.5 gbest | 9.1 g |
5 yearsbest | 1 years |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 64 GB | 128 GB |
Performance(1) | ||
Write Speed (MB/s) | 40 MB/s | 30 MB/s |
Connectivity(2) | ||
USB Version | USB 3.0 | USB 3.1 Gen 1 |
Interface Type | USB 3.0 | USB-A |
Build & Design(2) | ||
Weight (g) | 8.5 g | 9.1 g |
Dimensions (L×W×H) (mm) | 69.09×22.1×9.91 mm mm | 56.9×20.1×13.5 mm mm |
General(1) | ||
Warranty (years) | 5 years | 1 years |
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 drive's retractable connector and sleek black design, noting that the 130 MB/s read speed delivers fast transfers. However, they criticize the modest 30 MB/s write speed and the disclaimer that performance may vary, positioning the product as a solid everyday solution but not a high-performance option for power users.
Everyday users praise the reliability of the retractable mechanism, the convenient size, and the generous 128 GB capacity, often purchasing multiple units. Recurring concerns focus on the slower write speed and the reduction of usable space after formatting, with some noting inconsistent transfer speeds in real-world use.
