The Sony BZ30L Series 55 UHD 4K HDR Commercial Monitor is a 440 nits bright, Android OS based professional display. Featuring 24/7 continuous operation, flexible installation, and a full suite of professional apps and settings, the BZ30L series is ideal for conference rooms, classrooms, and digital signage in spaces with controlled lighting. With four HDMI inputs, connect a wide variety of devices with up to 4K60 video capability and HDCP 2.3. The BZ30L features an integrated USB media player and Android OS, allowing it to be deployed as a standalone display solution or with RS232 and IP control capability it can be easily integrated into a larger A/V network. Specifications. Display Size 55. Panel Type VA LCD. Aspect Ratio 169. Display Orientation Landscape, Portrait. Resolution 3840 x 2160. Maximum Brightness 440 nits / cd/m2. Lighting System Direct LED. HDR Compatibility HDR10, Dolby Vision, Hybrid Log Gamma. Contrast Ratio 12001. Dynamic Contrast Ratio 300,0001. Response Time 8 ms. Refresh Rate 60 Hz. Weight 50.6 lbs