Hi guys, I recently learned about a memory card called CompactFlash. I know it can store our photos, files, and other data, but some exact information about it confused me.
So can anyone tell me what is a CompactFlash, and how to read a CompactFlash card? What’s the difference between it and an SD card? Which one should I choose?
Any help would be appreciated!
CompactFlash(CF) originally introduced in 1994 by SanDisk, is a small solid-state electronic flash memory storage device commonly used in various electronic devices, especially where mobile storage is required.
CompactFlash has no moving mechanical parts. It does not rely on batteries to hold data because it is based on non-volatile flash memory and data is not lost even if power is turned off. In addition, CompactFlash has anti-magnetic and shock-proof characteristics, which can work normally in harsh environments.
In short, the CompactFlash card is a data storage device based on flash memory technology, widely used in various portable electronic devices.
If you want to read a CompactFlash (CF) card, you can follow these steps:
1. Use a CF card reader
If your computer does not have a built-in CompactFlash card slot, you need to use an external CF card reader. Connect the card reader to the USB port on your computer and insert the CF card into the appropriate slot on the card reader.
2. Check the device connection
After inserting the CF card, open the Finder to see if the CF card is displayed. If it does, you can directly open and access the files.
3. Install the driver
If the CompactFlash card is not automatically recognized after insertion, you may need to install a driver for the card reader. At this point, you need to install the drive before opening CompactFlash and accessing the files.
Usually, macOS recognizes the card reader automatically. However, if the device is older, you may need to download the appropriate driver from the manufacturer’s website.
CompactFlash and SD cards have their characteristics, and choosing between them depends on your specific needs and the device. You can choose according to the features listed below.
Physical size
CompactFlash (CF) is usually larger and thicker than SD cards. However, it is suitable for professional equipment due to its large physical size. While SD cards are smaller, there are also smaller microSD and miniSD versions, widely used in consumer devices such as phones, tablets, and small cameras.
Speed
CompactFlash cards, especially the CFexpress cards, generally have higher read and write speeds. Therefore, it is suitable for devices that process large amounts of data, such as cameras. Take a look at SD cards, SD card is not as good as CompactFlash although the latest SD card speed has been improved.
Storage capacity
Typically, CompactFlash has a larger storage capacity, up to hundreds of GB, or even close to 1TB. The maximum capacity of SD cards is relatively small. So if you want to store high-resolution videos and photos, CompactFlash is better.
Durability
CompactFlash is physically strong and is usually suitable for use in harsh environments, such as outdoor photography. However, the SD card structure is relatively weak and easily damaged. Although some advanced models of SD cards have functions of waterproof, shock-proof, and anti-magnetic, the overall durability is not as good as CF cards.