... USB 2.0 all in one card reader. 2.four in one 3.high speed transmission:480Mbps. water cube USB 2.0 all in one card reader1.card ... read speed:4 bit6.work temperature: 40°C~+85°C 7.Input Interface: High-speed USB 2.0. 8.compatible ... SE,WINDOW ME,WINDOW 2000,WINDOW 2003,WINDOW P4,WINDOW 7,WINDOW XP,Vista;MacOs86;MACOS…etc.9.USB interface ... .compatible USB 1.1. water cube USB 2.0 all in one card reader