HT82M23A
3/5-Key USBPS/2 Optical Mouse Controller (Holtek Semiconductor)
HT82M23C
3/5-Key USBPS/2 Optical Mouse Controller (Holtek Semiconductor)
HT82M21A
3-Key 3D USB+PS/2 Optical Mouse Controller (Holtek Semiconductor)
HT82M22A
5-Key 3D USB+PS/2 Optical Mouse Controller (Holtek Semiconductor)
HT82M25X
3/5-Key USB+PS/2 Optical Mouse Controller (Holtek Semiconductor)
HT82M28A
3/5-Key USB Vista Tilt Optical Mouse Controller (Holtek Semiconductor)
HT82M30A
3/5-Key 3D PS/2 Optical Mouse Controller (Holtek Semiconductor)
HT82M32A
3/5-Key 3D PS/2 Optical Mouse Controller (Holtek Semiconductor)