What's the Difference?
Powered USB Interface -- No power supply required
 
Configuration:
Thermal receipt printer
Powered USB connection
9.8 inches per second print speed
Auto Cut feature
Drop in and print paper load
Combined Power and USB cable version with cable included--no power supply needed

Color:
Beige or Charcoal Gray

Paper:
3-1/8 inch thermal paper (80 mm)

Model Numbers:
TSP-743IIPUSB (beige) #37999980
TSP-743IIPUSB-Gry (gray) #37999990

  Warranty:
3-year warranty from Star Micronics