The TMC2208 is a stepper motor upgrade kit for many brands of FDM style 3D printers. These replace the existing stepper motor drivers in the printers, resulting in the motors running much quieter and also improving the quality of the 3D print output by reducing jitter and step loss effects.
The kit includes five drivers to replace the X and Y drivers for the build plate, plus the X, Y and Z drivers for the print head.
Note: May improve relationships with significant others and friends due to less noise from printer. Especially if your 3D printer is the shared bedroom so you can check your prints at ungodly hours of the morning. Not that we recommend this.