Capacity: 1GB | 2GB | 4GB | 8GB | 16GB | 32GB | 64GB | 128GB | 256GB | 512GB
Speed: Speed Class | UHS Speed Class | Video Speed Class
|Dimensions||11 × 15 × 1 mm|
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DiskMFR micro SD cards are available in various specifications and cover a wide range of applications. Whether you need a high-speed card for your action cam, a high-performance card for your security camera, or just need extra storage for your phone or tablet, we’ve got the card for you.
|Speed Class||UHS Speed Class||Video Speed Class|
|Speed Class Marked C10||UHS Speed Class Marked U3||Video Speed Class Marked V90|
Numbers with a circular “C” symbol, a “U” symbol, or a “V” symbol next to or around them indicate memory card speed ratings. Manufacturers use these speed class symbols to indicate the type of speed class and rating on the memory card. The goal is to help consumers choose the right memory card for their hardware devices in terms of speed.
The first speed class is known simply as the original speed class, but as it is denoted by a “C” symbol we will refer to it as class C throughout the rest of this guide. There are four classifications within class C:
C2 is the slowest speed class, while C10 is the industry standard. Because newer hardware devices require newer speed classes with higher speeds and capabilities, almost nobody uses Class 2 through 6 today. C10 is typically the minimum speed class for most hardware devices manufactured today.
The next speed class up is the UHS (Ultra-High Speed) Speed Class and it’s denoted with the “U” symbol. There are two ratings within the UHS Speed Class:
UHS Speed Class is more commonly used than Speed Class today, and many of the higher-end cameras require at least a U3-rated memory card for many of their features, e.g. B. for recording high-resolution videos. The UHS speed rating primarily refers to the minimum sustained write performance for video recording and arose because 4K-compatible video recording devices require faster write speeds. As a rule of thumb, 4K-capable recording cameras generally require at least a U3 class SD card.
What makes the U1 and U3 memory cards more advanced than the Speed Class cards is that they use one of two UHS bus interfaces:
Both U1 and U3 memory cards can use the UHS-I bus interface but are not compatible with the UHS-II bus interface.
These UHS bus interfaces specify theoretical maximum read and write speeds as opposed to sustained speed class write speeds. UHS bus interfaces are denoted by a Roman numeral symbol “I” or “II” on the face of the card. Bus speeds refer to the theoretical data transfer rate of the interface itself, while a U3-rated SD card has its own sustained write speed of 30MB/s. For example, a card with UHS-I U3 guarantees a write speed of 30 MB/s but has the potential for reading and writing speeds of up to 104 MB/s when used with a compatible bus interface device.
These UHS bus interfaces specify theoretical maximum read and write speeds as opposed to sustained speed class write speeds. UHS bus interfaces are denoted by a Roman numeral symbol “I” or “II” on the face of the card. Bus speeds refer to the theoretical data transfer rate of the interface itself, while a U3-rated SD card has its own sustained write speed of 30MB/s. For example, a card with UHS-I U3 guarantees a write speed of 30 MB/s, but has the potential for read and write speeds of up to 104 MB/s when used with a compatible bus interface device.
A UHS-II compliant card has a potential read and write speed of up to 312MB/s. UHS bus interfaces are backward compatible, so you can use a UHS-II card in a UHS-I compatible device, but you won’t see the speed benefits of UHS-II because the card defaults to UHS’s lower specs – I. Both the card and the bus interface must be fully compatible to take advantage of the speed.
The latest video speed class was created to enable higher video resolution and recording capabilities such as multiple video streams, 360-degree recording, VR content, and 4K or 8K resolution videos. They are usually marked with the “V” symbol. There are five classifications for video speed classes:
The video speed class is unique in that it can use both the UHS-I and UHS-II bus interfaces. Speed class V6 to V90 memory cards can use the UHS-II bus interface, but the UHS-I bus interface only supports speed class V6 to V30 memory cards.
Video Speed Class offers the fastest speeds available and is ideal for ultra high definition video, high-quality video, and multi-file recording on drones and 360 cameras. Supports HD video formats up to 8K on drones, 360 cameras, action cameras, and VR cameras.
You can find the best card for your hardware device by selecting the same speed class or higher that your device requires. For example, if your device requires a class 4 memory card, you can use speed class 4, 6, or 10. If your device requires a UHS Speed Class 1 card, you can use UHS Speed Class 1 or 3. The same functionality applies to Video Speed Class as well. for a device, it still works but you don’t get all the benefits of the higher speed class because the device only supports the lower speed class.
DiskMFR™ is a world-leading supplier specializing in the research and development, design, manufacturing, and marketing of industrial solid-state disks (SSD), consumer digital products such as memory card/USB Flash disk, and memory modules.
Since its establishment in 2009, DiskMFR™ has developed innovative products and services based on its commitment to helping customer“access the best”. Our customers include global distributors, equipment manufacturers, and retailers.
We offer high-performance, high-reliability, and high-value memory modules and flash memory products for the industrial control market; for consumers, we design innovative digital storage and peripheral products for everyday use in the recording, storing, and sharing of digital data.
Of course. We provide experienced one-stop OEM and ODM service. We own the modern factory and professional R & D. Give us your idea for your own product, then we can make it come true.
From raw material to finished products, we employ a higher standard at every step of manufacturing. Strict tests and inspections are conducted to guarantee each piece of our SSD and USB flash drives are in perfect condition before shipping.
Most of our products are in stock, with no request for MOQ. For some products with customized silk printing, we request MOQ 50pcs per design. For special requirements, welcome to contact us.
Yes! Welcome to samples to test and check the goods’ quality, Mixed samples are acceptable.