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Help CenterVarious Brands of SD and SG Memory Storage Cards for Videos, Surveillance Cameras, Dashcams, Drones, Motion Cameras, Cameras, Mobile Phones,
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Contact: Mank. Li
#Complete model/specification classification of SD memory card (easy to understand at a glance)
Below, we will discuss the differences between * * appearance size → speed level → capacity standard → new and old protocols * *, so as not to fall into pitfalls when buying cards.
##1、 By appearance (physical dimensions)
1. * * SD large card**
Commonly used cameras, dashcams, and industrial computers
2. * * microSD (TF card)**
Mobile phones, sports cameras, surveillance cameras, drones (small in size)
3. **Mini SD**
Eliminate early, don't worry
##2、 By generation/capacity (very important, incompatible)
-* * SD (up to 2GB) * * Antique
-SDHC (4GB~32GB) * * Commonly used on old devices
-* * SDCC (64GB~2TB) * * is now mainstream
-SDUC (2TB or above) * * New high-end standard
Simple note:
**≤32GB = SDHC｜≥64GB = SDXC**
##3、 By speed level (focus on this when buying cards)
###1) Ordinary level
- **Class 4 / 6 / 10**
Minimum write speed: 4MB/s, 6MB/s, 10MB/s
Old and slow, not recommended
###2) USB speed (UHS-I)
- **U1（UHS-I）**：≥10MB/s
-* * U3 (UHS-I) * *: ≥ 30MB/s (sufficient for shooting 1080P)
###3) Video level (must watch for camera/surveillance)
- **V10、V30、V60、V90**
Minimum 10/30/60/90 MB/s respectively
**Surveillance and motion cameras must start with V30**
###4) A application level (mobile/tablet)
-A1: Installing the app is barely smooth
-A2: Preferred for mobile phone extended storage with strong performance
##4、 Bus protocol (interface speed)
-UHS-I: up to 104MB/s (90% cards on the market)
-UHS-II: Double row gold fingers, fast speed (200+MB/s), expensive, camera specific
##5、 Common daily combinations (buy directly)
1. * * Regular mobile phone/speaker**
MicroSDCC+A1 or A2
2. * * Driving recorder/monitoring**
MicroSDCC+V30+High Durability
3. * * Sports camera/drone**
V30 / V60 + U3
4. * * DSLR camera**
SD card+UHS-II+V90
6、 The simplest mnemonic for purchasing
Capacity: * * Buy SDCC for 64GB or above**
Video: * * Identify V30**
Mobile phone: Identify A2**
Old device: * * can only use ≤ 32GB SDHC**
You told me:
Is it for * * mobile phone, dash cam, camera, or surveillance * *?
I will directly recommend the most suitable model and pit avoidance points to you.
Send Inquiry to This Supplier
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