Transcend RDF8. Compatible memory cards: CF,MicroSD (TransFlash),MicroSDHC,MicroSDXC,SD,SDHC,SDXC, Product colour: Black, Certification: CE/FCC/BSMI. Interface type: Micro-USB. Power source type: USB, Input voltage: 5 V. Windows operating systems supported: Windows 10,Windows 7,Windows 8, Mac operating systems supported: Mac OS X 10.10 Yosemite,Mac OS X 10.11 El Capitan,Mac OS X 10.12 Sierra,Mac OS X 10.13 High.... Width: 67.6 mm, Depth: 45 mm, Height: 15.2 mm