Zebra S4M Thermal Midrange Printer, 8D, Wireless, 203 x 203 DPI, 152 mm/sec, Wireless Zebra S4M Thermal Midrange Printer, 8D, Wireless. Maximum resolution: 203 x 203 DPI, Print speed: 152 mm/sec. Connectivity technology: Wireless. Supported paper width: 104 mm