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3 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.

  • Acer CB342CUR €26.05
  • ASUS VU34WCIP-W €15.07
  • MSI PRO MP341CQPHG E12 €15.51
Model Acer CB342CUR ASUS VU34WCIP-W MSI PRO MP341CQPHG E12
Running cost
Running cost (per year) €26.05 €15.07 €15.51
over 10 years €260 +€110 over 10 years €151 €155 +€4 over 10 years
kWh per year 92 53.2 54.8
kg CO₂e per year from electricity use 19 11 11
Specifications
Brand Acer ASUS MSI
Model CB342CUR VU34WCIP-W PRO MP341CQPHG E12
Energy class G E E
Screen size 34″ (86.4 cm) 34″ (86.4 cm) 34″ (86.4 cm)
Power in on mode (SDR) 42 W 24.3 W 25 W
Energy class (HDR) G G G
Power in on mode (HDR) 70 W 34.7 W 40 W
Standby 0.5 W 0.5 W 0.5 W
Off mode 0.3 W 0.3 W 0.3 W
Resolution 3440 × 1440 3440 × 1440 3440 × 1440
Aspect ratio 21:9 21:9 21:9
Panel LED LCD LED LCD LCD
Refresh rate 60 Hz 60 Hz 60 Hz
Power supply STANDARD EXTERNAL External Internal
Guaranteed support 7 years 7 years 3 years
Software updates 8 years 8 years 8 years
Spare parts available 7 years 7 years 3 years
On the market since December 16, 2021 January 6, 2025 April 20, 2026
EPREL registration number 739044 2205883 2664456

Rows where the models differ are highlighted.