1. Transfer rate up to 480 MB/s; 2. Chipset NEC720101GJ; 3. Compatible with USB 1.1; 4. RoHS CE FCC; 5. For Window 98 / 2000 / ME / XP / VISTA / 7 / 8; PCMCIA CarBus express card to 2 ports USB 2.0 chipset NEC720101GJ; (1). Main Features: 1. USB 2.0 transfer rate up to 480 MB/s compatible with USB 1.1; 2. Chipset: NEC720101GJ; 3. Supports up to 127 USB devices per port; 4. USB Bus Power: (PC Card w/o Adapter) +5V 100mA per port (PCI or PC Card w/ Adapter) +5V 500mA per port; 5. Supports 32 bit CardBus PC Card Type II slots; 6. Support OS: Microsoft Windows 98/2000/ME/XP/VISTA/7/8; 7. Card Size: 85.6 x 54 x 5mm; 8. System Requirement :Available 32-bit CardBus / PCMCIA Type II slot; 9. RoHS CE FCC compliant; 10. Hot-plugging and wake-up supporting (2) System Requirement For System Microsoft Windows 98 / 2000 / ME / XP / VISTA / 7 / 8; Available 32-bit CardBus / PCMCIA Type II slot