Upgrade your ZD421 series printers network capabilities with our Ethernet Module P1112640-015. This module not only ensures full compatibility with ZD421, ZD421C, ZD421T, and ZD421D models but also supports both 203dpi and 300dpi, enhancing connectivity with no hassle. The quick and easy installation means youll boost your printer's performance in no time. Built to last and backed by a 3-month warranty, this upgrade is the smart choice for your business. Enhance your productivity and network efficiency todayorder now and see the difference!