Epson Epson TM-H6000IV (024): Serial, w/o PS, EDG, MICR, E/P. Type: POS, Print technology: thermal, Character size: 0.99 x 2.4 mm. Maximum roll diameter: 83 mm, Supported paper width: 80, 58 mm. Connectivity technology: Wired, Interface: RS-232, USB 2.0 Type B. Mean time between failures (MTBF): 360000 h. Dimensions (WxDxH): 186 x 278 x 181 mm, Weight: 4.4 kg