StarTech.com 2 Port 12V/24V Powered USB Adapter Card, USB, 2.63" (66.7 mm), 4.72" (120 mm), 7.05 oz (200 g), 7.05 oz (200 g), Wired StarTech.com 2 Port 12V/24V Powered USB Adapter Card. Host interface: USB. Width: 2.63" (66.7 mm), Depth: 4.72" (120 mm), Weight: 7.05 oz (200 g). Package weight: 7.05 oz (200 g). Connectivity technology: Wired, Compatible operating systems: Windows 2000/ME/2003/XP/Vista. Case or master carton quantity: 50 pc(s)