Dual USB Header Port Adapter with USB 2.0 Internal Ports - Right-Angle USB Specification: USB 2.0 (1.1 backwards compatible) Pitch: 2.54mm pitch (standard on most motherboards) Pin Layout: 2 x 5 (with Key); 9-pin Compatibility: Power on pins 1 and 2 of header Dimensions: Height: 15mm; please see photos for reference