quad monitor: 1.9 inches Digital Quad Monitor 2.Single, dual, triplex, quad, ... Y-split image and PIP functions quad monitor features:9 inches Digital Quad MonitorPicture image may be adjusted for Horizontal, ... , you can control the computer through the touch screen9 inches Digital Quad Monitor MO-146D 1. Dimension:9”TFT ... Contrast: 500:1 6. Viewing angle: U:50°/D:60°;R/L:70°7. Aspect ratio: 16:9 8. ...