MicroSDHC Cards

Expand your mobile device’s storage capacity with a high-speed microSDHC card. This is a high-capacity micro-sized Secure Digital (SD) memory card. Compared to full-sized SDHC cards, microSDHC ones are smaller and slimmer. Mobile devices, like smartphones and tablets, use these tiny expandable storage units. Check the large inventory of flash storage cards and sticks at Staples to find the right memory cards for your devices.

Features to consider when shopping for microSDHC cards
These flash memory units are available in storage capacities ranging from 2GB to 32GB. Shoppers should consider the kinds of files they intend to store on these devices when picking storage capacities. Choose a 2GB or 4GB unit to store only text files. Image, audio, and video files are significantly larger and need higher storage capacities. To avoid running out of space during extended photo or video shoots, pick high-capacity memory cards for a digital camera.

Device compatibility is also a key factor to consider when shopping for flash memory storage. Note that a microSDHC expansion slot can read both microSDHC and microSD cards. However, microSDHC memory cards only work in microSDHC and microSDXC slots. The overall performance of a data storage device depends on its read and write speeds. Users intending to transfer and store heavy files need microSDHC memory cards with high read/write speeds.

Understanding the different microSDHC card speed classes
Manufacturers use different classifications to describe flash memory speeds. The most important ones are Speed Class, UHS Speed Class, and Video Speed Class. There are four Speed Classes and they indicate the minimum sustained write speeds of these flash memory storage devices. Class 2, 4, 6, and 10 can transfer files at minimum speeds of 2, 4, 6, and 10MBps. Look for a number enclosed in an almost complete circle printed on the card to know its Speed Class.

Some memory cards support faster UHS-I, II, and III bus speeds. These are better for recording high-resolution videos. There are two UHS Speed Classes. U1 cards have a minimum write speed of 10MBps while U3 ones can write at 30MBps or faster. Look for a U-shaped icon printed on a microSDHC memory card to confirm that it supports UHS bus speeds and determine its UHS Speed Class. Video Speed Class describes minimum sequential write speeds, a more accurate metric for video capture performance. There are five Video Speed Classes. These are V6, V10, V30, V60, and V90 representing minimum write speeds of 6, 10, 30, 60, and 90MBps respectively.

What is the difference between microSDXC and microSDHC cards?
MicroSDHC units have a maximum storage capacity of 32GB and come preformatted with FAT32 file system. MicroSDXC cards are available in storage capacities ranging from 32GB to 2TB. They use ex-FAT file system.

What are the best microSDHC cards for recording 4K and 8K videos?
Look for units with rated UHS and Video Speed Classes. Choose a U1, U3, V6, V10, or V30 microSDHC memory card to record 4K videos. Get the faster V60 or V90 card to shoot 8K videos.

Can you use a microSDHC card in an SDHC slot?
While the micro-sized card is smaller and slimmer than the slot for a full-sized SD card, there are adapters to make it fit. Use these to mount microSDHC memory cards in the full-sized SD slots found on computers and digital cameras.