Running at 2.1 lps through a 7-pin impact dot matrix mechanism, the Epson C31C163272 is a desktop slip printer configured with a serial interface and powered by a 24 V DC adapter, sold separately. It prints monochrome output across 42 columns and accepts slip media ranging from 80 to 182 mm wide and 69 to 257 mm long, accommodating a broad range of custom document sizes at the POS. The unit ships in white and measures 7.1 in wide by 7.5 in deep by 4 in tall, weighing 3.53 lb. Four print sizes, four print directions and a page mode are supported, and the printer carries VCCI Class A, FCC Class A, CE, UL and CSA C22.2 No. 950 certifications for worldwide regulatory compliance.