SanDisk Ultra 64GB
Score: 75/100
Transcend 128GB Micro SD Card
Score: 82/100Rankings
The Transcend 128 GB microSDXC card offers high endurance and fast read speeds, making it ideal for dashcams and continuous Full HD recording. Its write speed falls short of U3/V30 standards, limiting 4K performance. Best suited for users needing rugged, long-life storage in harsh environments.
The SanDisk Ultra 64 GB SDXC card delivers solid read performance up to 99.5 MB/s and broad compatibility with major camera brands. Write speeds hover around 16-22 MB/s and it lacks higher video class ratings, limiting 4K use. Suited for casual to semi-professional photographers.
| Attribute | | |
|---|---|---|
64 GB | 128 GBbest | |
80 MB/s | 100 MB/sbest | |
10 MB/s | 85 MB/sbest | |
| ↓ lower better | 4 g | 0.4 gbest |
10 yearsbest | 5 years | |
| ↓ lower better | 2.3 mm | 1 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Capacity (GB) | 64 GB | 128 GB |
Performance(3) | ||
Read Speed (MB/s) | 80 MB/s | 100 MB/s |
Write Speed (MB/s) | 10 MB/s | 85 MB/s |
Speed Class | Class 10 | U1 |
Design(3) | ||
Form Factor | SDXC | microSDXC |
Weight (g) | 4.0 g | 0.4 g |
Thickness (mm) | 2.3 mm | 1 mm |
General(1) | ||
Warranty (years) | 10 years | 5 years |
Products in the top-left offer the best value (high score, low price).
Professional reviewers view the Ultra as a budget-friendly option that delivers solid read performance but falls short on write speed. They note its suitability for users with modest bitrate needs while recommending the Extreme or Extreme Pro lines for demanding video or burst photography.
Everyday users generally express high satisfaction, praising the large capacity, reliability, and seamless camera compatibility. Complaints are minimal, with most reviewers reporting error-free operation and quick delivery.
“built to last”
“decent 40ish MB/s write speed”
Professional reviewers and editors consistently commend the Transcend 128 GB endurance card for its rugged build, extreme temperature tolerance, and impressive 30,000-hour video endurance, noting that its 100 MB/s read and ~45 MB/s write speeds are adequate for continuous Full HD dashcam and security-camera workloads.
Everyday customers echo the professional praise, highlighting the card's durability in dashcams and security cameras and its ability to record long stretches of Full HD video without failure.
