CUSTOM K3. Print technology: Thermal, Type: POS printer, Maximum resolution: 203 x 203 DPI. Maximum roll diameter: 10 cm, Supported paper width: 80 mm. Connectivity technology: Wired, Serial interface type: RS-232. Built-in barcodes: 1D, 2D, AZTECCODE, Data Matrix, PDF417, QR Code, Flash memory: 5 MB, Autocutter durability: 1 million cuts. Product colour: Black