．Print Speed: 250 mm/sec ．Splash and dust proof design ．Paper Auto-Cutter ．Vertical printing ．Multi I/O Interface    (Serial +Ethernet +USB or Parallel +USB) ．Cash drawer connection port (RJ-11) ．Compatible with ESC/POS print command sets ．Various Drivers available ．Drop-and-print paper installation, simple paper jam elimination ．Optional audible indicator for noisy environment operation