FOR Built-in Network Card for 105sl/S4M — Printer Spare Part

Replacement FOR built-in network card compatible with 105sl/S4M printers. This internal network interface serves as a direct spare part for the 105sl and S4M models, restoring wired LAN connectivity and allowing the printer to join a network for centralized printing and management. Suitable for field service, maintenance, or as a factory-style replacement, it installs into the printer’s internal expansion slot to return network functionality to compatible units.