BEST ALIEXPRESS MEMORY CARD STORES

The best AliExpress memory card stores sell the best SD and microSD card required by your device for storage expansion.

We know finding the best memory card for your device can be really confusing considering all the stupid and complicated jargons associated with memory cards this day. We all need memory cards to expand the storage capacity of our device. We want to record more videos, listen to more music, watch more movies and capture more beautiful moments in pictures.

Memory cards comes in different shades; therefore, one size doesn’t fit all device. Different device required specific class of memory card. A memory card required in 4K dash cam is different from a memory card required in an android phone.

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Since there are several factors to be considered before buying the right memory card for your device, we thought it would be a good idea to do a step-by-step memory card buying guide for you.

MEMORY CARDS BUYING GUIDE: WHAT YOU NEED TO KNOW

To ensure you buy the right memory card for your device, here is everything you need to know before making a purchase.

What is Memory Card?

A memory card is a storage device that provides a permanent and non-volatile medium of storing media and data files.

Types of Memory Cards

There are different types of memory cards, but for the sake of this post, we will only focus on 2.

SD Cards – Secure Digital Cards are full size memory card with a physical dimension of 32mm x 24mm.
microSD Cards – They are compact memory cards with a physical dimension of 15mm x 11mm. microSD cards are often called TF Cards (Trans Flash Cards) in Asia. If you here a seller on AliExpress says, TF Cards he/she is refering to microSD card.

Usually SD cards are used in DSLR cameras whereas microSD cards are commonly used in smartphones, tablets, action cameras, portable music players, GPS Map readers, GPS Finders, Car Dash Cam, drones, security cameras, baby monitors and other smaller handheld devices.

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Memory Card Formats & Capacities

SD or microSD – Standard Memory Card. It has up to 2GB storage space using FAT 12 and 16 file systems
SDHC or microSDHC – Secure Digital High Capacity memory cards. It has more than 2GB or less than 32GB storage using FAT32 file system
SDXC or microSDXC – Secure Digital eXtended Capacity memory It has over 32GB but less than 2TB storage using exFAT file system.

SDHC or microSDHC memory cards are designed to meet the growing needs and demands for high resolution (HD) pictures and videos. SDHC or microSDHC cards have the same standard shape as SD or microSD cards, however, they meet the high defintion (HD) required of SD memory cards. SD or microSD cards between 4GB and 32GB capacity are usually SDHC or microSDHC memory cards.

SDXC or microSDXC memory cards are designed to also meet the growing demands for high resolution (HD) videos and pictures with a faster data transfer speed better than SDHC or microSDHC memory cards.

Memory Cards Capacity/Size

SD and microSD memory cards come in variety of storage size ranging from 4GB to 2TB. Memory cards with a storage size of 32GB and below are categorized as SDHC cards whereas memory cards with storage size of 64GB and above are termed SDXC cards.

Memory Card speed and performance

This is probably the most confusing part when it comes to buying a SD or microSD card. What the hell is the “speed class” mark written on SD or microSD cards.

In order not to totally confused you, speed class mark on SD or microSD cards are intended for video recording use. The speed class mark is an indication of the data transfer speed. For example, a 4K device required SD or microSD card that can write data at high speed.

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Below are the various SD and microSD speed classes:

Speed class refers to the rate at which a memory card read and write data without a fatal disruption for video. It is usually expressed in megabytes per seconds (MBps).

Class 2 Card have a read and write data rate of 2 MBps
Class 4 Card have a read and write data rate of 4 MBps
Class 6 Card have a read and write data rate of 6 MBps
Class 8 Card have a read and write data rate of 8 MBps
Class 10 Card have a read and write data rate of 10 MBps

Well, SD and microSD memory cards speed class used to be this very simple until 2010 when ultra-high-speed (UHS) bus was introduced.

We now have U1 and U3 “speed class” mark on memory cards.

U1 card provide a speed of 10 MBps
U3 card provide a speed of 30 MBps

As if things were not already complicated yet, in 2016 a new video speed class mark was introduced to achieve a faster speeds for higher-resolution devices. This newly introduced video recording speed class are known as V class.

The following are V “speed class” mark on memory cards:

V6 card provide a video recording speed of 6 MBps
V10 card provide a video recording speed of 10 MBps
V30 card provide a video recording speed of 30 MBps
V60 card provide a video recording speed of 60 MBps
V90 card provide a video recording speed of 90 MBps

Are you still with me on this journey or you are confused? If you are confused with the termilogies, please ask questions in the comment below, I would try my best to clarify.

BEST MEMORY CARD FOR YOUR DEVICE

I really wished, I can say “this is the best memory card to buy for your device” without knowing the device. But there is NO one-size fit all solution when buying a memory card.

The best way to make sure you get the right memory card for your device is by first reading the memory card specification for the device. Checking the required memory card for your device is super important before buying a SD or microSD memory card.