AOC E4 Q27E4U computer monitor 68.6 cm (27 inch) 2560 x 1440 pixels Quad HD LED Black

The AOC E4 Q27E4U is a 27" Quad HD LED monitor offering a 2560 x 1440 QHD resolution on an IPS panel. It delivers a 120 Hz refresh rate and a 4 ms response time for smooth motion, while an adjustable stand and VESA compatibility provide flexible setup options. Built-in speakers and a USB hub simplify connectivity, and hardware-based blue light reduction helps reduce eye strain. The monitor comes with a five-year warranty.

Advantages

The monitor combines high resolution and a fast 120 Hz refresh rate to support detailed visuals and fluid on-screen movement. IPS technology ensures wide 178° viewing angles and consistent color reproduction. Ergonomic features such as height adjustment and VESA mounting enable comfortable placement, while integrated speakers and a USB hub reduce the need for extra peripherals. Energy consumption is specified as 16 kWh per 1000 hours (SDR/HDR), and the product is supplied in a black finish.

Suitable for

• Office work and productivity tasks
• Content creation and photo editing at QHD resolution
• Multimedia playback and video conferencing
• General-purpose home use and multi-monitor setups

Key specifications

• Display diagonal: 27" (68.6 cm)
• Resolution: 2560 x 1440 (Quad HD), 16:9
• Panel type: IPS, LED backlight
• Refresh rate / response time: 120 Hz / 4 ms
• Brightness (typical): 350 cd/m²
• Contrast ratio (typical): 1500:1
• Viewing angles: 178°
• Built-in features: USB hub, speakers, VESA mount
• Energy consumption: 16 kWh per 1000 hours (SDR/HDR), class D
• Colour: Black

How to use

Place the monitor on a stable surface or attach it to a VESA-compatible mount. Connect video sources using the available video inputs and plug peripherals into the built-in USB hub as needed. Adjust the screen height for an ergonomic viewing position and enable the hardware blue light reduction in the monitor menu to decrease eye strain during extended use. Use the on-screen display to adjust brightness, contrast, and audio levels from the integrated speakers.

Recommendations

For prolonged productivity sessions, set the monitor height so that the top third of the screen is at eye level, use the blue light reduction setting during evening work, and keep ambient room lighting to moderate levels to reduce reflections and eye fatigue.