Product Quality: Mac Display Capacity: 16GB. * Using original chip international brands. * Through USA FCC,Europe CE,ROSH quality and environmental certification authority. * All products are constructed to the high standards and rigorously tested at every stage of production,so you can be confident in the outstanding quality, performance and reliability. Notice: *How Much Can You Store? Storage Industry Area calculation method: 1GB=1000MB=1000*1000KB=1000*1000*1000B Operation System calculation method: 1GB=1024MB=1024*1024KB=1024*1024*1024B So 1GB storage in your devices shows as: (1000^3)/(1024^3)=0.93GB So there are some differences between nominal capacity and display capacity of flash memory products. 16GB is about 14.4 - 15GB Product Package: 1 X USB Flash Drive100% RISK - FREE SATISFACTION GUARANTEE - 30-day money back guarantee 12-month warranty, let you confident with our charger cords. Free lifetime technical support, carefree service!. USB thumb drive requires no setup; you simply plug it into your laptop or desktop to access or store data. It can be used to store music, photos, designs, files, movies, documents, portable programs and just about any other type of data you might have. Easy to store and easy to carry. GREAT FOR ALL AGES AND PURPOSES: suitable for digital data storing, transferring and sharing in school, in family, to friends, to clients, to machines. Apply to data storage of music, photos, movies, designs, manuals, programmes, handouts etc. MULTIFUNCTION & WIDE COMPATIBILITY: suitable for digital data storing, transferring and sharing in school, in family, to friends,to wedding, to clients, to machines. Apply to data storage of music, photos, movies, designs, manuals, programmes, handouts etc. USB 2.0.USB connection,support Hot plug & Play.No need to install any software. Operating System: Win98/ME/2000/XP/ Vista/win7 /win8/Win10, Mac OS 9.X/Linux2.4 and Compatible with USB2.0 and below.