2048 bit RSA key in the cryptographic module 4 GB or larger flash memory storage for TOSIBOX® Key software and settings USB 2.0 interface, type A Standard CSP/PKCS#11 One Mobile Client included (Android, iOS) Supported operating systems Windows 10, Windows 8/8.1 (32/64 bit), Windows 7 (32/64 bit), Windows Vista (32/64 bit), Windows XP (SP3), Windows Server 2003, Windows Server 2008 Mac OS X 10.9 Mavericks or more recent (Intel 64-bit) SKU TOSI-TBK2
