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4 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.
  • Acer

    XV342CK
    G 34″QHDLCD / LED144 Hz

    €22.33 per year

    +€3.60 a year

  • Cheapest to run

    Itek

    ITMC34V181WQHD
    F 34″QHDLCD / LED165 Hz

    €18.73 per year

  • MSI

    MAG 346CQ
    F 34″QHDLCD / LED180 Hz

    €19.23 per year

    +€0.50 a year

  • Acer

    EI342CKR
    G 34″QHDLCD / LED144 Hz

    €19.78 per year

    +€1.05 a year

Yearly running cost

Bars in proportion to the energy each model uses.

  • Acer XV342CK €22.33
  • Itek ITMC34V181WQHD €18.73
  • MSI MAG 346CQ €19.23
  • Acer EI342CKR €19.78
Model Acer XV342CK Itek ITMC34V181WQHD MSI MAG 346CQ Acer EI342CKR
Running cost
Running cost (per year) €22.33 €18.73 €19.23 €19.78
over 10 years €223 +€36 over 10 years €187 €192 +€5 over 10 years €198 +€11 over 10 years
kWh per year 78.8 66.1 67.9 69.9
kg CO₂e per year from electricity use 17 14 14 15
Specifications
Brand Acer Itek MSI Acer
Model XV342CK ITMC34V181WQHD MAG 346CQ EI342CKR
Energy class G F F G
Screen size 34″ (86.4 cm) 34″ (86.4 cm) 34″ (87 cm) 34″ (86.4 cm)
Power in on mode (SDR) 36 W 30.2 W 31 W 31.9 W
Energy class (HDR) G G G G
Power in on mode (HDR) 57 W 54.5 W 51 W 51.2 W
Standby 0.5 W 0.5 W 0.5 W 0.4 W
Off mode 0 W 0.3 W 0.3 W 0.3 W
Resolution 3440 × 1440 3440 × 1440 3440 × 1440 3440 × 1440
Aspect ratio 21:9 21:9 16:9 21:9
Panel LED LCD LED LCD LED LCD LCD
Refresh rate 144 Hz 165 Hz 180 Hz 144 Hz
Power supply Internal Internal Internal Internal
Guaranteed support 7 years 7 years 3 years 7 years
Software updates 8 years 8 years 8 years 8 years
Spare parts available 7 years 7 years 3 years 7 years
On the market since March 1, 2021 May 15, 2024 January 31, 2025 March 31, 2021
EPREL registration number 399659 2013813 2223008 372019

Rows where the models differ are highlighted.