The three types are only different in technology and chip, so the speed is also different. After 2003, digital cameras produced by Fuji and Olympus all used xD memory cards as media.Īt present, there are three types of xD cards commonly available in the market: standard type, M type, and H type. The xD card, also called xD-Picture card, is jointly launched by Olympus Corporation and Fuji Co., Ltd.
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In addition, Sony has also launched expanded and upgraded products of Memory Stick, including MS PRO, MS Duo, MS PRO Duo, MS Micro (M2), and Compact Vault. However, because Sony's digital product line is very rich, the Memory Stick is popularized rapidly and is widely used. It is only used in Sony's digital products. MS ( Memory Stick) is a memory card product introduced by Sony in 1999. Note: Micro SD card is also called TF card (TransFLash). These cards can be read by the SD card slot if they are sleeved with adapter. In addition to ordinary SD cards, there are smaller Mini SD cards and Micro SD cards. Therefore, new SDHC and SDXC standards have been formulated to make the maximum capacity of SD cards up to 2TB. The upper limit of the standard capacity of SD cards is only 2GB, which is not enough to cope with the increasing capacity requirements. The SD slot can accept the MMC card, while the MMC slot can't read SD card. The SD card is developed based on the MultiMedia card (MMC) format, and the size is similar to the MMC card, but it is 0.7mm thicker than the MMC card to accommodate a larger capacity storage unit. It was jointly developed by Japan's Matsushita, Toshiba and the US SanDisk in August 1999. SD card (Secure Digital Memory Card) is currently the most widely used memory card. SD card is also developed on the base of MMC, so MMC card can be read by SD slot. It later derived models such as RS-MMC, MMC Plus, and MMC Mobile. It fits in devices like digital camera, MP3, MP4, mobile phone, GPS, PAD, etc. The biggest highlight of the card is its wide compatibility. MMC Cardĭue to the large volume of traditional CF cards, Siemens and SanDisk jointly launched a brand-new memory card product in 1997 - the MultiMedia Card (MMC). CF card, CFast card, and CFexpress card are not compatible with one another. Note: CFA later introduced faster CFast and CFexpress cards, so CF card is sure to be phased out.
Besides, most other types of memory cards can be used on the CF card slot through the adapter, including SD cards, MMC cards, Memory Stick Duo, xD cards, SmartMedia cards, etc. The latter is twice as thick as the former.ĬF I card slot does not support CF II card, while CF II card slot is backward compatible with CF I card and supports MicroDrives.
The CF card is divided into CF I and CF II. It has advantages like large storage capacity, low cost, and good compatibility.
The CF card is one of the longest-standing memory cards on the market. Therefore, CF card has a solid foundation. It's supported by CFA (CompactFlash Association), which already has members like Canon, LG, Epson, Casio, Minolta, Nikon, Kodak, NEC, Polaroid, Panasonic Psion, HP and many other OEM users and partners. The CF card (Compact Flash) was first launched by SanDisk in 1994. In this post, I will introduce them to you.
The types of memory cards currently available on the market include SD, TF, CF, MMC, MS, xD, etc. Before you buy a memory card for digital products, you must first figure out the type of memory card you need. Different types of memory cards may be incompatible in interface.
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They are independent storage media used in mobile phones, digital cameras, portable computers, MP3s and other digital products.ĭue to the wide application of memory cards, many manufacturers have launched their own products, so there are many types of memory cards. Memory cards, generally in the form of cards, have the characteristics of small size and large storage capacity.
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