Ricoh PJ WU6181N 6200-Lumen WUXGA LCD Projector (No Lens) - Manual (Page 197)

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8. User Supportware
Network environment Wired or wireless LAN required that supports TCP/IP
* The following LAN adapters are verified to work with Projection Utility:
• Wired LAN adapter built into Mac
• Wireless LAN adapter built into Mac
• Apple USB Ethernet adapter
• Apple Thunderbolt Ethernet adapter
“Easy Connection” supports only wireless LAN.
Supported Resolution SVGA (800 × 600) or higher required
XGA (1024 × 768) recommended
(1024 Ч 768 – 1280 Ч 800 recommended for WXGA type)
Supported Screen Colors 16.70 million colors required