1. High speed trasfer rate. 2. Excellent reliability and compatibility 3. High storage capacity: Up to 1 Gbyte 4. Dimention:MMC: 32mm*24mm*1.4mm (L*M*H), SD: 32mm*24mm*2.1mm (L*M*H) 5. Operating voltage: 2.7V ~ 3.6V 6. Operation temperature: - 20 ~ 85℃ 7. Storage temperature: - 20 ~ 85℃ 8. Low power consumption for portable device Product Name: 3C Card Thinnest USB Disk Item No.: OSC-701CU Function: 1. 3C card can be used as traditional USB Disk 2. 3C card can be used as Standard SD/MMC card; it is the standard SD/MMC size. and it is DC/mobile/PDA media card also; 3. Standard SD/MMC and USB port; share storage media 4. Standard SD/MMC size; 5. Only 2.1mm , the Mot thinnest Pen drive in the world, can be stored in wallet! Advantage: 1. Standard size : Standard SD card Size (32*24* 2.1mm ) 2. High Quality : all of Samsung A+ class Flash chip 3. High Speed USB disk: Standard USB 2.0 speed,(R/W: 9.5M / 8.5M /s) 4. High Speed SD card: almost same speed as 80 X SD card( maybe different from various device) 5. Thinnest : the thinnest USB disk in the word (only 2.mm), easy to be stored in wallet. 6. Capacity: from 64M to 512MB