Featuring a 4 inch width (101.6mm) print head, the QL-1100 offers maximum compatibility with third party shipping label software packages from couriers and parcel delivery companies. And for sellers who use the Fulfilled by Amazon (FBA) service, the crop-print feature enables you to print multiple barcode labels contained in the PDF generated by your Fulfilled by Amazon account. The driver detects, extracts and prints each individual label to the QL-1100 automatically, making it easy to mark up your items to be shipped to Amazon. This printer has full PC and Mac compatibility thanks to its USB connection, and the free P-touch Editor label design software lets you add text, images and barcodes to your labels.The QL-1100 can easily be integrated into your own systems and software using the Windows SDK (Software Development Kit) .