Also works with the 2100-IN-1 and other Mega PCB Boards.
4 Ultra bright multi-color RGB LEDs Pre-Programmed with 4 unique patterns and 8 different color combinations. Patterns - Solid, Chase Pattern 1, Chase Pattern 2, Color Fade & Then Color Change Colors - Red, Green, Blue, Yellow, Orange, Purple, Light Blue, Light Purple. (Requires 12v power source - not included) 
The LED Trackball with USB & PS/2 interface allows personal computers to easily interface with the standard "Arcade Quality" trackball and pushbuttons via either the USB port or PS/2 connector without the use of any external power supply. This allows the user to replace the existing mouse with a heavy-duty trackball for public access and similar applications. 
The USB & PS/2 trackball can be added with or without removing the original mouse. The device will be automatically configured as soon as it is physically plugged into the USB port or hub, without the need to reboot or run setup. 
Exceptional performance and precision is achieved from hardened steel shafts. 
No interface needed to connect the trackball to a PC. 
Connects directly to either a PS/2 (mouse) port or a USB port on a PC. 
Compatible with Windows 98 or higher and Mac OS 8.5 or higher, Linux with USB HID support. 
External 12 VDC power supply required for LED.
Automatically detects whether it is connected to a PS/2 or a USB port and configures itself accordingly. 
Comes with a 6-foot cable that plugs into a USB or a PS/2 port. 
Supports up to three buttons. (Three-button functionality will require the use of a driver that supports three buttons. The standard MS driver supports only two, and the MAC OS supports only one). 
Includes both .187" and .250" terminal connectors for pushbuttons. 
Patterns & Colors easily selectable via switch on bottom of trackball. 
Durable black polycarbonate plastic material. 
Exceptional performance and precision is achieved from harden steel shafts. 
Pushbuttons and mounting plate kits are sold separately.