Model: KWCR-506 External 23 – In – 1 Universal Card Reader / Writer Up to 480 Mbps Data Transfer Rate In USB 2.0 Support Hot Plug & Play 4 Slots Multi-Function Flash Reader 5 Indicators For Easy Recognition USB Bus-Powered, No External Power Supply Required Support OS: Win98SE/2000/ME/XP/Vista/7/8 Mac OS 8.6 or higher Support High Capacity Memory Cards