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Mmc Usb
i plug a usb 2.0 sd mmc reader but it is not install on my comp.i also try add hardware but it is not install?

(1) use the ports in the back of the computer, they can handle more power to your device.
(2) once plugged in, if it doesnt find the device then;
(a) put in a memory card to see if that triggers it to show up.
(b) goto windows update and run it, see if it finds and installs the driver.
(3) last resort, goto manufacturer website and serch for issues & drivers for your device.

(these instructions apply to most all usb devices)

Car Kit MP3 Foldable FM Transmitter for SD/MMC/USB/CD $0.01

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New White SD MMC and TF Card Reader USB 2.0 Bus Powered $1.99

USB 2.0 ALL IN 1 MEMORY CARD READER WRITER SD CF MS MMC $4.99

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USB 2.0 SD SDHC MMC Memory Card Reader 2GB 4GB 8GB 16GB $0.49

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USB 2.0 SD CF XD MMC MEMORY CARD READER WINDOWS XP 7 PC $5.99

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23 IN 1 USB 2.0 MEMORY CARD READER for MS MMC XD CF SD $4.99

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SD SDHC MMC Usb 2.0 Memory Card Reader 2GB 4GB 8GB 16GB $4.50

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3 Kinds of Internal Card Reader with usb sata

Internal Card Reader from the interface point of view is: parallel port card reader, serial reader material, USB card reader, PCMICA card reader and IEEE 1394 internal card reader. The first two reader interface is slow due to inconvenience or installation has basically been eliminated. USB internal card reader is currently on the market the most popular reader, PCMICA card reader is the most important applications in notebook computers, while IEEE 1394 card reader interface also because there is no popular support, the application is not yet widespread.

At present, the dominant flash memory or multimedia card mainly for: TF card, SM card, CF card, MicroDrive, MemoryStick, Memorystick Pro, MMC Card, Micro SD Card, MiniSD Card, SD and SDHC, xD cards. In accordance with sub-categories to read the flash memory, card reader has been divided into single-function card reader, multi-card reader. Single-function card reader in general can only be read one type of flash memory cards, such as the TF card reader can only be read TF Card Flash memory card, SM card reader can only read the SM flash memory cards, such reading Card unit price low, usually 10-30 yuan; and multi-card reader is to eat a variety of flash cartoon, whether TF card, CF card or MemoryStick can easily read, but such products Prices slightly higher, according to the type of flash memory cards to read how much the prices ranging between 8 to 38 yuan.

Internal Card Reader Classification

USB Internal card reader

Support USB1.0 and USB2.0 ports, plug and play, currently on the market share of the largest and practical, is the largest category of products on the market. Main advantage is that products must be added over the previous SD configurator can read TF card has a leap of development, mainly economic and practical

Internal card readerwith sata/esata

Now is also the more common reader, you can end pc backup information, sim cards contact cards and other functions, is a good tool to back up personal data.

CRW-X all in one internal card reader

Supports ISO14443 TypeA / TypeB non-contact CPU card and Mifare one card, built-in 2 in line with ISO7816-3 to SAM small IC cards, support a variety of communication interfaces and communication protocols for a variety of non-contact IC card application system Novel appearance, stable performance, powerful, rich interfaces, expansion and strong.

CRW-VI-type External universal IC card reader is a kind of miniature IC card reader equipment, mainly for portable applications. According to differences in the way with the computer interface is divided into USB port (CRW-VIu type) and serial interface (CRW-VIs type) are two suitable for a variety of applications and application environment. We can also according to the needs of users for the specific needs of developing dedicated IC card reader.

CRW-V series of IC card reader via USB port or serial port with a computer or laptop connected to support CPU card and MEMORY card operations, providing two pairs of card reader card connector of choice. CRW-V series of IC card reader and CRW-II/III/IV type reader is compatible with the interface library, user-friendly application system upgrades. It can be widely used in banking, insurance, corporate business systems such as fees and medical fees.

WatchCore for the convenience of users to develop an embedded IC launched a smart card application-specific IC card interface chip, built-in IC card reader all operating procedures applicable to a variety of dedicated devices embedded IC development, can mainly be used in smart IC card meter, water meters, gas meters, automated teller machines, IC card refueling and other devices.

Internal card reader is a fantastic and useful card reader.