ASUS (4712900510164 / VP228HE) - AC input frequency: 50/60 Hz - AC input voltage: 100 - 240 V - Digital horizontal frequency: 30 - 83 kHz - Digital vertical frequency: 50 - 75 Hz - N/A - LED - LED backlight | Blue light
Philips (8712581740375 / 323E7QDAB/00) - AC input frequency: 50/60 Hz - Refresh rate: 60Hz - AC input voltage: 100 - 240 V - Digital horizontal frequency: 30 - 83 kHz - Digital vertical frequency: 56 - 76 Hz | IPS displays
iiyama (4948570116850 / TF2234MC-B6X) - AC adapter included - Full HD - HDCP - HDMI - LED indicators - Linux operating systems supported - Plug and play - Quick start guide - VESA mounting - Wall mountable | Touch screen