Material: Metal Size: about 65 x 40 x 12 mm High quality metal Shell Mould, Slinky and fashion, Portable Support Hot Plug Easy To Use, No external power required USB 2.0 Version specification, Support USB 1.1 Version Specification High transmission Speed, May Reach To 480 Mb/s System supports: Windows 98SE / Me / 2000 / XP / Vista / 7; Mac OS 9.0 or later (No driver needed) Compatible For T-Flash, Micro SD, Micro SDHC, Memory Stick Micro (M2),Memory Stick (MS), Memory Stick Pro (MS Pro), Memory Stick Duo (MS Duo), Memory Stick Pro Duo (MS Pro Duo), SD, MMC, RS-MMC, SDHC, Mini SD, Mini SDHC Note: Memory Card Not IncludedNote: Memory Card Not Included. Compatible For T-Flash, Micro SD, Micro SDHC, Memory Stick Micro (M2),Memory Stick (MS), Memory Stick Pro (MS Pro), Memory Stick Duo (MS Duo), Memory Stick Pro Duo (MS Pro Duo), SD, MMC, RS-MMC, SDHC, Mini SD, Mini SDHC. USB 2.0 Version specification, Support USB 1.1 Version Specification.High transmission Speed, May Reach To 480 Mb/s. Support Hot Plug Easy To Use, No external power required. High quality metal Shell Mould, Slinky and fashion, Portable,Size: about 65 x 40 x 12 mm.