Star Sanei SK4-21SF-M-ST, USB, RS232, 8 dots/mm (203 dpi), cutter

receipt printer, front exit, direct thermal, resolution: 8 dots/mm (203 dpi), USB, RS232, media width (max.): 58 mm, print width (max.): 54mm, roll diameter (max.): 83mm, speed (max.): 150 mm/s, cutter, Black Mark Sensor.