VIEWSONIC VG3448 WORKPRO MONITOR 34.1 5MS 60HZ VA 3440X1440 WQHD 300 HDMI DP 10BIT 21:9 50M:1 1.07B HOPARLOR FREESYNC FLICKER FREE MAVI ISIK FILTRESI TILT SWIVEL YUKSEKLIK AYARI VESA ENERGY STAR EPEAT