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2 monitors side by side.

6 h a day
  • Electricity at €0.2832 per kWh (household price with taxes, Eurostat 2026-S1).
  • 210 g CO₂e per kWh generated in 2023 (European Environment Agency). Counts use only, not manufacturing.

Yearly running cost

Bars in proportion to the energy each model uses.

  • MSI Modern MD341CQP €19.23
  • AOC CU34E4CW €12.40
Model MSI Modern MD341CQP AOC CU34E4CW
Running cost
Running cost (per year) €19.23 €12.40
over 10 years €192 +€68 over 10 years €124
kWh per year 67.9 43.8
kg CO₂e per year from electricity use 14 9.2
Specifications
Brand MSI AOC
Model Modern MD341CQP CU34E4CW
Energy class F D
Screen size 34″ (86 cm) 34″ (86.4 cm)
Power in on mode (SDR) 31 W 20 W
Energy class (HDR) G G
Power in on mode (HDR) 36 W 46 W
Standby 0.5 W 0.5 W
Off mode 0.3 W 0.3 W
Resolution 3440 × 1440 3440 × 1440
Aspect ratio 21:9 21:9
Panel LED LCD LED LCD
Refresh rate 60 Hz 60 Hz
Power supply External Internal
Guaranteed support 3 years 8 years
Software updates 8 years 8 years
Spare parts available 3 years 7 years
On the market since March 20, 2024 October 15, 2025
EPREL registration number 1895174 2418682
Networked standby – 2 W

Rows where the models differ are highlighted.