Print Speed: Max 127mm/s Print Width: 20-82mm Auto Cutter: No DRAM/ FLASH: 4M More functions: 1. support various windows including Windows2000/Windows,XP /Windows 7, Win8.1/Vista 2. support barcode:UPC-A/UPC-E/JAN13(EAN13)/JAN8(EAN8)CODABAR/ITF/CODE9/CODE93/CODE128 3. Support PDF417、QR CODE, DATAMATRIX print 4. Compatible with ESC/POS Command