SMART Technologies Board MX Pro V4. Display diagonal: 190.5 cm (75"), Display brightness: 400 cd/m2, Display resolution: 3840 x 2160 pixels. Operating system installed: Android 11, Maximum internal memory: 544 GB, User memory: 32 GB. Speaker power: 20 W. Top Wi-Fi standard: Wi-Fi 6 (802.11ax), Ethernet LAN data rates: 1000 Mbit/s. HDCP version: 1.4/2.3, USB connector type: USB Type-A, USB Type-B, USB Type-C, USB Power Delivery up to: 65 W