Two optional expansion modes: 1×9pin input splits to 4 female headers; 2×9pin inputs expand to 8 USB 2.0 ports; Dedicated auxiliary power connector supplies extra stable power for multiple internal USB peripherals; Built-in magnetic base for firm adsorption inside chassis, easy positioning without adhesive tape; Standard 9pin USB 2.0 motherboard header design, compatible with all ATX/MATX/ITX motherboards; Compact internal hub structure, tidy wiring to expand front panel USB, card readers and cooling fans