Griffin Technology PowerMate 1040-PMT USB Multimedia Controller and Input Device (Aluminum, PC/Mac) Assignable USB controller knob for managing volume, scrubbing audio files, or scrolling video frames Easy-to-program settings can control virtually any function on your computer Compatible with any application that uses key commands Striking machined-aluminum housing with pulsing blue base Includes installation CD-ROM and 40-inch extension cable; 1-year warranty