A very simple mod for your PowerMate controller | The SWLing Post
Griffin PowerMate Multimedia Control Knob for USB Computers, Black - Assignable USB multimedia controller (9d17dd30e8444a57794f02ecaf6e3849) - PCPartPicker
User manual Griffin Technology PowerMate Assignable USB Multimedia NA16029 | PDF-MANUALS.com
PowerMate USB - Walmart.com - Walmart.com
Griffin PowerMate Bluetooth hands-on - SlashGear
Griffin PowerMate Volume Control Cabinet Mod
Griffin PowerMate - Deskthority wiki
Griffin Technology PowerMate USB Multimedia Controller PC/Mac with Disc | #1791533435