Corporate
Address
27 Journey Suite 100
Aliso Viejo Ca 92656
Phone
+1 (800) 234-9292
Email Address
support@centon.com
Opening Time
Mon-Fri: 8:00 AM - 5:00 PM
SD Technology
Learning Center › SD Technology
Learning Center
SD Technology
Find the best SD technology for your needs: speed classes, bus interfaces and capacity standards at a glance.
Speed classes
SD technology migration.
Each speed rating stands for a speed level, from 2 MB/s to 90 MB/s. Match the rating to the video you record.
| Speed | Speed Class | UHS Speed | Video Speed | Video support |
|---|---|---|---|---|
| 90 MB/s | V90 | 8K | ||
| 60 MB/s | V60 | 8K / 4K | ||
| 30 MB/s | U3 | V30 | 4K / FHD | |
| 10 MB/s | Class 10 | U1 | V10 | 4K / FHD / HD |
| 6 MB/s | Class 6 | V6 | HD / Std | |
| 4 MB/s | Class 4 | Std | ||
| 2 MB/s | Class 2 | Std |
Bus interfaces
SD and SD Express.
SD Memory Card
High Speed
Up to 25 MB/s on the SD bus.
SD Memory Card
UHS-I
Up to 104 MB/s.
SD Memory Card
UHS-II and UHS-III
Up to 312 MB/s (UHS-II) and 624 MB/s (UHS-III).
SD Express
PCIe and NVMe
985 MB/s (PCIe Gen.3x1), 1970 MB/s (PCIe Gen.4x1 or Gen.3x2) and 3940 MB/s (PCIe Gen.4x2). microSD Express supports PCIe Gen.3 only.
SD Express cards also carry the UHS-I and High Speed SD bus.
Capacity
Capacity standards and file systems.
Up to 32 GB (FAT32)
SDHC
High Capacity.
Up to 2 TB (exFAT)
SDXC
Extended Capacity.
Up to 128 TB (exFAT)
SDUC
Ultra Capacity.
More guides
Keep learning.
Not sure which card you need?
Tell us your device and how you use it, and we will recommend the right card.
Or call 800-234-9292, Monday to Friday.We’re here to help! Reach out to us with your inquiries, feedback, or support needs. Our team is ready to assist you.
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