Optical Encoders

Mouse encoders (or Optical encoders) allow the use of a trackball or spinner and offer the functionality of a mouse hack in an easy-to-use form. They offer several benefits including ease in connecting controls and time savings.

Opti-PAC

Opti-PAC

The Opti-PAC allows for easily connecting optical-type arcade control devices including trackballs and spinners to a PC.

Relevant Link: Ultimarc's Opti-PAC Page

Opti-Wiz

Opti-Wiz

Description needed

Relevant Link:
GroovyGameGear's Opti-Wiz Page

ME4

ME4

Description needed

Relevant Link: Hagstrom's ME4 Page