Supports max 30Hz and 4K*2K resolution output compliant to usb 3.0,usb 1.1/2.0 specification supports usb 3.0 high speed up to 5Gbps Supports 1 x up stream port and 4x down -stream ports. equipped with over-current detection & potection Connects up to 127 USB devices plug&play الحالة جديد النوع أكسسوارات الكمبيوتر