PNY's Multi-Slot USB & Flash Card Reader is a digital hub that connects your USB flash drives, USB powered devices and flash memory cards on one convenient unit for easy access to all of your stored content. Four slots support all versions of SD, microSD, MMC and MS/PRO Duo and three slots support USB 2.0 devices. The multi-reader connects to your laptop or desktop via any USB 2.0 port for high speed transfers of up to 480Mb/s.