Model: KWCR-901 Support High Capacity Memory Cards All – In – 1 Internal Card Reader / Writer 1 Port USB 2.0 Hub Compatible with USB 2.0 & 1.1 port Support MS/MS Duo/CF/MD/SD/SDHC/MMC/SM/XD Card Up to 480 Mbps Data Transfer Rate In USB 2.0 Support Hot Plug & Play 4 Slots Multi-Function Flash Reader 4 Indicators For Easy Recognition 5V/500mA Bus Power Support OS: Win98SE/2000/ME/XP/Vista/7/8 Mac OS 10 or higher Support USB power saving mode Support auto-detecting slot with card inserted. Support slot-to-slot read/write operation. Download files via USB 2.0 high-speed transfer rate up to 480Mbits/sec AC power adapter is not required Specifically designed for digital cameras and also ideally for using with Palmtop PCs, Handheld PCs, PDAs, Voice Recorders, MP3 Players and other mobile electronics using Flash Cards as standard or extended storage media High efficiency Card interface hardware engine for data transfer. Disk to disk data transfer. Portable-compact design and low power consumption View and edit pictures directly on the reader USB powered, no external power required. Internal design fit into 3.5"drive bay to save the desktop space. Easy to install and use. Active LED indicators of power and busy (read/write) equipped. Internal design fit into 3.5"drive bay to save the desktop space.