Hardware (assistive technology)
Lekotek of Georgia's Switch Accessible Trackball Universal 
(Macintosh® or Windows®)
Access Features for Macintosh® and Windows®:
• Two 1/8 inch switch jacks correspond to the trackball buttons.
• Trackball buttons are disabled when switch is plugged in. This eliminates accidental hits and allows task analysis learning (first roll the ball to the desired location, then press a separate switch for the click).
• Works as a switch interface for any switch software that accepts the mouse click as input (including: Edmark, Intellitools, Kidtech, Don Johnston and RJ Cooper).
• Allows paired access (friend or family member "points" and the switch user "clicks")
• Ball is securely seated and is not removeable.
• Extra-long cord - 72" for convenient access to wheelchair trays, mounts, and placement away from system.
• Customizable buttons give single-click solutions to repetitive tasks.
• Large buttons with auditory click. Large, 1 1/2" blue ball.
• Universal Plug and Play - no need for set up - works with Mac or Windows mouse drivers.
• Mac USB compatible running Mac OS 8.1 or later.
• Price: $125
• Item #: ATB
• Type: USB or Mac ADB (please specify)
• Orbit Kensington Trackball
• Price: $45
• Item #: TB
NEW! - Switch Adapted Mouse 
(Mac or Windows)
Dell 2 Button USB Standard mouse (non-optical)
Adapted left click – Rollerball can be removed to ensure that the cursor is stationary.
Perfect low cost solution to making your computer switch accessible.
Price: $45 Item # SAM
• Converts battery-operated devices to remote control with a switch
• Copper plate fits between battery terminal and contact.
• 12" cable with 1/8" plug
• Fits AA, C, and D batteries
• Price: $10
• Item #: BI-1
• Type: Single switch (switch not included)