EnergyLabelEU
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Costs for 0.283 €/kWh · Eurostat 2026 H1

Monitors · 34″ · 3440×1440 · LED LCD

Acer XZ342CU S3

F

Uses less electricity than 53% of the 1,482 monitors, 32–42″ on the EU register. At your selected price (European Union) that is €13 a year, €128 over ten years.

Power, SDR
31.0 W
Typical 31 W
Running cost
€13 / year
4 h a day
Power, HDR
55.0 W
1.8× SDR

Near the middle of its group: 1 % below the typical 46 kWh. Class F is the most common class in this group (51% of models). In HDR it draws 55.0 W, 1.8 times its SDR power. Acer has 122 models in this group; this one is number 48 among them.

Where it stands

Rank 531 of 1,482 monitors, 32–42″ by yearly consumption. 530 use less.

Median 46 This model · 45 5 135 kWh ← uses less · uses more →

Next to it in the ranking

  1. F Acer ED340CU S 45 kWh same
  2. F MSI MAG 345CQR 45 kWh same
  3. F Acer XZ342CU S3 45 kWh
  4. F Acer XZ342CU V3 45 kWh same
  5. E Acer SB322QU A 45 kWh same
See the full ranking

What it will cost you

Period XZ342CU S3 LX34 ZA Difference
1 year €13 €2 −€10
5 years €64 €12 −€52
10 years €128 €24 −€105
15 years €192 €35 −€157

Is the more efficient model worth its price?

Years of use

Enter both purchase prices to see the total cost of ownership.

Power in SDR and HDR

SDR 31.0 W
HDR 55.0 W
Group median, SDR 31.5 W

Cost by viewing time

Use kWh / yr € / yr
2 hours a day 23 €6
4 hours a day 45 €13
8 hours a day 91 €26

Same size, lower running cost

On sale, at least 10% less energy, same size group

Model SizeSDR W kWh / yr Saves / year in 10 years
F Acer XZ342CU S3 (this model)
34″31.0 45 — —
34″5.7 8 €10 €105
34″5.7 8 €10 €105
34″8.0 12 €10 €95
34″15.9 23 €6 €63
34″20.0 29 €5 €46

Label and product sheet

Energy class SDR / HDR
F / G
On-mode power SDR
31.0 W
On-mode power HDR
55.0 W
Standby / networked standby
0.5 W
Screen diagonal
34″
Resolution
3440×1440
Panel
LED LCD
Refresh rate
60 Hz
Software updates (minimum)
8 years
Guarantee (supplier)
2 years
Spare parts (minimum)
7 years

Model numbers and history

Registered by Acer under one model number.

XZ342CU S3

  1. First published in the EU register (EPREL)
  2. Placed on the EU market

Questions

How much does the Acer XZ342CU S3 cost to run?

At 4 hours a day it uses about 45 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €13 a year, or €128 over ten years.

Does HDR use more electricity?

Yes. In HDR mode this screen draws 55.0 W instead of 31.0 W, 1.8 times as much. The yearly cost on this page uses SDR, as the label does.