The Tangent Element Tk Panel is the trackerball panel in Tangent's four-panel Element series, built to replace a keyboard and mouse for colorists working in supported grading software like DaVinci Resolve, SCRATCH, On-Set Dailies, Mistika, and YoYo. 3 Programmable Trackerballs + 3 Rings: Each ball and ring has its own reset button, plus two additional buttons programmable for functions like ALT or Shift. Optical Laser Pickup: Trackerballs and rings use laser pickups for high precision and long service life, and the balls are removable for cleaning. White OLED Function Labels: Displays update to show each control's current programmed function, and re-label automatically when reprogrammed. Magnetic Panel Attachment: Connects to other Element panels by magnet, taking up only 7.9 inches of desk depth on its own. USB Plug-and-Play: Bus-powered over a single USB cable with no drivers required. Tangent HUB Compatible: Works with Tangent's HUB service for custom control layouts on supporting software.