efox SD

How to select a suitable Memory Card? A Knowhow about choosing the memory card specifications and picking transmission speed.


How to choose a memory card? Introduction and selection of memory card specifications for beginners.

Firstly, you need to understand your requirement, equipment and specifications. Nowadays,  most of photographic equipment uses microSD or SD cards. As long as you understand the signs, you can buy a suitable card easily. The price, brand, and type of microSD cards vary widely, ranging from US$3 to US$30. The main differences are the capacity and read / write speed. The capacity is larger, the reading and writing speed is faster, and the price will be higher. At present microSD is divided into three categories, SD, SDHC and SDXC, the difference is the capacity. Sort by capacity, SD <SDHC <SDXC. The capacity of SD is less than 2GB, SDHC is between 4GB and 32GB, and more than 64GB is classified as SDXC.

User will notice read speed in first time. Speed Class represents the guaranteed minimum read and write speed of the memory card. It is divided into two types: “SD Speed Class” and “UHS Speed Class”. “UHS Speed Class” SD Speed Class is faster, and both speed specifications are usually marked on the memory card. SD Speed Class is divided into four specifications of 2, 4, 6, 10, and the appearance of the memory card will be indicated by the corresponding number written in the middle of “C”; UHS Speed Class is divided into two specifications of 1, 3, with ” The corresponding number written in the middle of “U” indicates that when the value is higher, the reading and writing speed is faster per second. Because the maximum reading speed is not included in the specification, it is usually marked on the outer box by the manufacturer, and you can also pay attention when selecting it.

What capacity and speed of memory card should we select?

In terms of a 14-megapixel picture, 2GB can store about 340 pictures, and 32GB can store about 5,400 pictures. Based on normal recorded Full HD videos, 2GB is about 20 minutes and 32GB is about 5 hours. Therefore, you should first look at your needs and buy a card. For mobile phones, 64GB is very suitable for users who are lazy to back up data. It is safer to use. As for sports cameras or cameras, it is generally recommended that cameras use 32GB to memorize the journey. , And photography needs more than 64GB, it is best to carry 3 pieces 64GB at one time.

Reading speed is crucial!

When shooting video, the transmission speed will affect the quality of video, and the transmission speed of the camera mode will also influence the speed of continuous shooting, so it is super important to choose a memory card! For example, “C2” means 2MB/s, and “C4” means 4MB/s. For UHS specifications, “U1” means 10MB/s, and “U3” means 30MB/s. If it ’s just taking pictures one by one, then the C10 is enough. If you want to shoot more than 2.7K, you can prepare U3 without problem. For example, GoPro must match U3 memory card, otherwise it will appear error when recording video in a half.

Most Memory Card has waterproof function!

When the mobile phone or other device is damaged due to soaking in water or other factors, as long as the memory card is not destroyed, more or less important data can be recovered. Especially when using a waterproof phone or a driving recorder or sports camera with a waterproof function, a waterproof memory card can provide users with more peace of mind.

Dellwa marketing manager, Alan, mentioned that memory card we provide such as Sandisk, Kingston, Samsung and our efox, mostly have waterproof, shock proof, temperature resistance. If customers need memory card with special specification, we can recommend the suitable one for you.