BrosTrend AC1200 WiFi to Ethernet Adapter, 1200Mbps Dual Band Universal Wireless Bridge for Printer, Smart TV, Blu-Ray Player, PlayStation, Xbox, etc, WPS Easy Setup, Connect a Wired Device to Wi-Fi

If it has an Ethernet card, you can use a BrosTrend to give it WiFi. https://www.amazon.com/BrosTrend-600Mbps-Adapter-Wireless-WNA016/dp/B0118SPFCK That's what we use to give WiFi to a printer that has Ethernet but does not support modern WiFi and it works quite well.