​The most common DSE input devices other than the keyboard are a mouse, trackball, touch pad or touch screen - g​enerally termed 'pointing devices'. While the mouse is often the most suitable pointing device others should be considered as appropriate.

Factors to consider when selecting a pointing device include:

• The environment in which it will be used, the availability of space and the surface on which it could be used
  
  
• The individual characteristics / preferences of the user – physical limitations or conditions, capable of being used by left or right handed staff, its size and shape
  
  
• The characteristics of the work for example the speed and accuracy required

When using a pointing device it is important to:

• locate the device such that the upper arm is relaxed at the side of the body. The arm may be supported on the chair arm or work surface when using the device
  
  
• ensure that mouse mats have a smooth surface and are large enough for the task without sharp or pronounced edges
  
  
• ensure that the speed and sensitivity of the device is set up to suit the individual user
  
  
• ensure that periods using a pointing device are interspersed with other activities
  
  
• let go of pointing devices when not using it to avoid prolonged static postures

Increasingly pointing devices such as mice are being replaced by touch screens on tablets and laptops. In principle these provide an improved user computer interface as they encourage a wider range of musculoskeletal movements than using a mouse and avoid prolonged static postures.