Product Description: USB3.0 HEAD FEMALE A/BACK FEMALE A l Metal crust made of Aluminium Alloy, have black and silver for your choose, have black and silver for your choose,other color can be customized. l Fixed by nut, easy to install. l Operating Temperature: -25℃~+55℃(No Freezing) l Pane Cutout: 22 mm l Panel Thickness:1~ 10mm l Transmission Rate:≥100MB/s operating Humidity: 45-85%RH(NO Condensation) 