The CL-S631II models are ideal for small labels with 2D matrix barcodes such as Datamatrix, DataBar, QR-Code and PDF417 or printing company logos and idents and CE or WEEE logos. Model No: CL-S631II Width of Paper: 104mm Printing Method: Thermal Transfer + Direct Thermal Printing Speed: 100mm/s Interface: Serial (RS-232C), USB, LAN, Ethernet,Parallel are optional