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Secure Digital Card (SD) Memory  ![Secure Digital Card (SD) Memory]()
Secure Digital (SD) and MultiMediaCard (MMC) are electrically the same, except Secure Digital supports "Digital Rights Management. "Digital Rights Management" is seldom used and applies to purchased music or video. Secure Digital Cards are also thicker than MMC (2.1mm vs 1.4mm). Many SD also carry a write-protect tab on the side which is used by the writing device to prevent overwrites. Speeds are measured in multiples of 150KB/sec (same as CDROMs). A 66x speed SDC card will have a transfer rate of 10BM/sec. SD card specification 1.01 has a maximum speed of 66x. SD card specification 1.1 has a maximum speed of 133x. Secure Digital High Capacity is a new format and is not compatible with older SD applications. Please refer to the SDHC section for SDHC cards.
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| | | | 4GB | 2GB | 1GB | 512MB | 256MB | 128MB | 64MB | 32MB | Accessories | | | | | | | | | | | | | | | | | | | | | Brand | Size | Description | Part # | Price | | | | | | |  | Smartparts | Accessories | Secure Digital & Multimedia Card Slot Cleaning Kit (p/n Cleaner-MMC/SD), more  | Cleaner-MMC/SD 20101 | $2.49 |  | Generic | Accessories | Reader/Writer USB 2.0 to MMC/SD/SDHC Card (Single Slot Design) (p/n READ-USB2.0-SD), more | READ-USB20SD_015079 | $2.98 |  | Sony | Accessories | Sony PCMCIA to SmartMedia, SD/MMC, MS/MSP Adapter (p/n READ-PCMCIA-5-IN-1), more | READ-PCMCIA-5-IN-1_BXG | $29.98 |  | Generic | Accessories | Plastic Clam Shell Case for Secure Digital Card (p/n HOLDER-SD), more | HOLDER-SD_CDY | $0.59 |  | Yungteng | Accessories | Flash Card Holder for all Memory Cards (HOLDER-4-ALL), more | HOLDER-4-ALL 002408 | $5.98 |  | SanDisk | Accessories | Mini SD to SD ( Secure Digital) Card Adapter(p/n ADAPTER-MINI-SD), more | ADAPTER-MINI-SD CNV | $0.59 |  | SanDisk | Accessories | SanDisk MobileMate SD Plus Memory Card Reader (p/n SDDR-104-A11M), more | SDDR-104-A11M_018516 | $6.99 |  | Gigaram | Accessories | Reader/Writer USB 2.0 to MMC/SD/SDHC Card (Single Slot Design) (p/n READ-USB2.0-SD-W), more | READ-USB2.0-SD-W 009331 | $3.98 |  | hard plastic | Accessories | Plastic Clam Shell Case for Secure Digital Card and Micro SD Card ( 2 slots) (p/n HOLDER-SD-TF), more | HOLDER-SD-TF_020837 | $0.59 |  | Transcend | Accessories | Transcend 15-in1 USB 2.0 to CF, MD,MMC, SDC, xD, MS, MS Pro, MS Pro Duo, miniSD Flash Reader/Writer (p/n READ-USB2-15in1-P8), more | READ-USB2-15in1-P8 015416 | $12.98 |
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Toll Free: 1-866-MemoryX [636-6799]