Samsung PRO Ultimate 128GB
Score: 88/100
ADATA Speed Plus 128GB
Score: 85/100Rankings
The Samsung PRO Ultimate 128 GB microSDXC provides industry-leading read/write speeds and rugged waterproof/shock protection, making it perfect for demanding 4K video and high-performance mobile gaming. Its trade-off is a premium price and limited capacity relative to larger-capacity cards. Best for content creators, videographers and gamers who need the fastest storage available.
The ADATA Speed Plus 128 GB microSDXC offers top-tier sequential speeds and A2 app performance, backed by a lifetime warranty. Its full speed potential is limited to UHS-I U3 readers and it lacks explicit rugged certifications. Best suited for content creators and power users needing fast 4K capture.
| Attribute | | |
|---|---|---|
128 GBbest | 128 GBbest | |
200 MB/sbest | 180 MB/s | |
130 MB/s | 160 MB/sbest | |
| ↓ lower better | 0.25 gbest | 0.25 gbest |
10 yearsbest | — | |
| ↓ lower better | 1 mmbest | 1 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(3) | ||
Read Speed (MB/s) | 200 MB/s | 180 MB/s |
Write Speed (MB/s) | 130 MB/s | 160 MB/s |
Interface | UHS-I | SD 6.0 |
General(1) | ||
Warranty (years) | 10 years | Lifetime years |
Products in the top-left offer the best value (high score, low price).
Professional reviewers note the card's industry-leading read/write speeds and its classification as Samsung's 'world's No.1 flash memory', emphasizing its suitability for demanding 4K video and high-performance mobile applications.
Professional reviewers have not published a dedicated review of the Speed Plus 128GB A2 model; however, editors note that similar ADATA cards are praised for high sequential speeds and A2 random performance, while emphasizing that real-world results depend on the host device and that a dedicated UHS-I reader is needed to reach peak speeds.
Everyday users of related ADATA microSD cards appreciate the reliable capacity expansion and solid performance for mobile devices, but they frequently mention that actual speeds may fall short of specifications on slower hosts and wish for clearer ruggedness ratings.
