Thermal transfer ELP printers include three models with three dpi formats: 220, 320 and 620. Are said to deliver durable print-head performance and print small labels. The ELP620 has micro-miniature printing capabilities. All are said to be functional, easy-to-use and easily maintained. Additional attachments can be integrated. Come equipped with multiple connection capabilities, including serial, parallel, USB, Ethernet and wireless. Have standalone mode.