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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.

  • Acer CB322QK €18.48
  • ASUS HA3281A €14.39
Model Acer CB322QK ASUS HA3281A
Running cost
Running cost (per year) €18.48 €14.39
over 10 years €185 +€41 over 10 years €144
kWh per year 65.3 50.8
kg CO₂e per year from electricity use 14 11
Specifications
Brand Acer ASUS
Model CB322QK HA3281A
Energy class F E
Screen size 32″ (80 cm) 32″ (80 cm)
Power in on mode (SDR) 29.8 W 23.2 W
Energy class (HDR) F –
Power in on mode (HDR) 28.3 W –
Standby 0.5 W 0.3 W
Off mode 0.3 W 0.2 W
Resolution 3840 × 2160 3840 × 2160
Aspect ratio 16:9 16:9
Panel LED LCD LED LCD
Refresh rate 60 Hz 60 Hz
Power supply Internal Internal
Guaranteed support 7 years 7 years
Software updates 8 years 8 years
Spare parts available 7 years 7 years
On the market since February 28, 2023 October 27, 2023
EPREL registration number 1207881 1701832

Rows where the models differ are highlighted.