The Zebra RW 420 is a mobile printer ideal for printing delivery receipts and invoices on the go. Its modular design allows users to choose among wireless options, card readers, and integral accessories such as vehicle mounts for simplified route printing. This version of the RW 420 is cable ready and has a 4 inch printhead. The printer comes with LCD, 4MB DRAM, 8MB flash, standard media, MCR/SCR reader and belt clip.