1) Functioning as a portable USB Flash Drive or Card Reader. 2) Read and write SD/MMC/RS-MMC/TF 3) Fully USB V2.0 specification and Compliant with USB v1.1 4) Easy Plug & Play installation device 5) USB bus powered, no external power is needed 6) Full speed upto 480 Mbits/sec. 7) Convenient and fast date exchange for MP3, PDA, digital camera, mobile phones,date, etc. 8) No driver is needed for Win 2000/ME/XP Mac OS 9.1/OS X Specifications: 1) Weight: 50g 2) Power supply: USB port 3) System requirements: Windows 98, 2000, ME, XP, MacOS 4) Operating temperature: 0 - 65oC IC: AU6331(standard USB 2.0) BILSTER PACKING+Inner Color Card design ACCEPT OEM ORDER: Free silkscreen on case, Free Inner Color card design Carton size: 52×41×32CM