SHARP PN-M501 50" CLASS FULL HD LED DISPLAYA standalone signage solution with the flexibility and expandability to support various applications and usage styles. Thanks to its built in SoC (System on a Chip) controller, the 50" Class (49. 5" diagonal) Sharp PN M501 monitor delivers out of the box digital signage solutions even without external devices such as PCs. 50" Class (49. 5 diagonal) Screen Size Built in SoC controller with Android OS 4. 4 & Arm Cortex A17 1. 8Ghz quad core processor