High-speed data transfer of up to 480 Mbps SD & micro-SD card reader supports memory cards up to 2 TB. Ideal when slots are at a premium: for connecting a PC, notebook, Mac Book, tablet or smartphone to a USB (Universal Serial Bus) stick, mouse, keyboard or printer, & for reading & writing SD & micro SD memory cards. Works with USB (Universal Serial Bus) 3.0 & USB (Universal Serial Bus) 2.0 devices. Plug & Play, no manual software / driver installation required. Supports USB (Universal Serial Bus)-OTB (USB On The Go).