The Onn Keep Onn Multi-Port USB Hub with SD, microSD, and CompactFlash Card Reader is a versatile device designed to enhance connectivity for computers, tablets, and eBook readers. With multiple memory card slots supporting SD, microSD, and CompactFlash cards, this unit offers seamless access to a variety of memory card formats. The USB connectivity allows for easy data transfer, making it a convenient accessory for users looking to expand their device's memory capabilities. The compact and unit quantity of 1 make it a space-saving solution for those in need of a reliable memory card reader/writer.