Difference Between Sd And Sdhc Camera Memory Cards
Choosing the right memory card for your camera can be a daunting task, especially with so many different types available. Two of the most popular types of camera memory cards are SD and SDHC cards. But what is the difference between the two, and which one is right for your camera? In this article, we will take a closer look at SD and SDHC camera memory cards and highlight their differences and similarities.
What is an SD memory card?
SD stands for Secure Digital and is a type of non-volatile memory card format that is used in digital cameras, cell phones, and other portable devices. SD cards are available in a range of storage capacities, from 2 GB to 2 TB. The original SD card has a storage capacity of up to 2 GB, while SDHC cards have a capacity of up to 32 GB.
What is an SDHC memory card?
SDHC stands for Secure Digital High Capacity and is a type of SD memory card format that was introduced in 2006. SDHC cards are faster and can store more data compared to their predecessor. SDHC cards have a storage capacity of up to 32 GB.
Physical Differences
One of the main physical differences between SD and SDHC cards is their size. An SD card measures 32 mm by 24 mm by 2.1 mm, while an SDHC card measures 32 mm by 24 mm by 2.1 mm. In addition, the capacity of SDHC cards is greater than that of SD cards, with SDHC cards being able to store up to 32 GB of data compared to the maximum capacity of 2 GB for SD cards.
Speed Differences
SDHC cards are faster than SD cards because they have a higher data transfer rate. The data transfer rate for SDHC cards is between 4 MB/s and 100 MB/s, while the data transfer rate for SD cards is between 2 MB/s and 5 MB/s. This means that SDHC cards can write and read data much faster than SD cards.
Compatibility
SDHC cards are backwards compatible with most devices that support SD cards. However, SD cards are not forwards compatible with SDHC devices. In other words, if your camera only supports SD cards, it will not be able to use an SDHC card. Therefore, it is important to check the compatibility of your camera before purchasing an SD or SDHC card.
Conclusion
In summary, while both SD and SDHC cards are used in digital cameras and other portable devices, there are some key differences between the two. SDHC cards are faster and can store more data than SD cards, but are not compatible with all devices. When choosing a memory card for your camera, it is important to consider both the capacity and speed of the card, as well as its compatibility with your camera.
