Bundle of 2 Marvel Avengers USB2.0 8GB Sticks Iron man gold/red & Silver War Machine Ultra portable USB Drive and lightweight metal design Waterproof and shockproof design, Compliant with USB 2.0/1.1 port Windows ME/2000/XP/Vista/CE3.0/Mac OS 9.0/Linux2.4.0 or higher (No software needed) Plug-n-play via USB port, No installation required Fast Transfer Rates(Read mode: 25 MB/s; Write mode: 8~12 MB/s)