EnergyLabelEU
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Costs for 0.283 €/kWh · Eurostat 2026 H1

Monitors · 12″ · 1920×720 · LCD

Asus XG129C

C

Uses less electricity than 67% of the 2,372 monitors, under 24″ on the EU register. At your selected price (European Union) that is €2 a year, €25 over ten years.

Power, SDR
6.0 W
Typical 8 W
Running cost
€2 / year
4 h a day

Near the middle of its group: 23 % below the typical 12 kWh. 38% of comparable models reach a better class than C; the most common is E. On-mode power in SDR is 6.0 W; the typical screen of this size draws 7.9 W. Asus has 46 models in this group; this one is number 3 among them.

Where it stands

Rank 663 of 2,372 monitors, under 24″ by yearly consumption. 662 use less.

Median 12 This model · 9 0 75 kWh ← uses less · uses more →

Next to it in the ranking

  1. B Energizer M15A 9 kWh same
  2. B Energizer M18A 9 kWh same
  3. C Asus XG129C 9 kWh
  4. B KTC H15F8 9 kWh same
  5. B KTC H15F9 9 kWh same
See the full ranking

What it will cost you

Period XG129C SY10FN60 Difference
1 year €2 €1 −€2
5 years €12 €4 −€8
10 years €25 €9 −€16
15 years €37 €13 −€24

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

Cost by viewing time

Use kWh / yr € / yr
2 hours a day 4 €1
4 hours a day 9 €2
8 hours a day 18 €5

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
C Asus XG129C (this model)
12″6.0 9 — —
11″2.1 3 €2 €16
11″2.6 4 €1 €14
11″2.7 4 €1 €14
11″3.0 4 €1 €12
11″3.0 4 €1 €12

Label and product sheet

Energy class SDR / HDR
C / –
On-mode power SDR
6.0 W
Standby / networked standby
0.2 W
Screen diagonal
12″
Resolution
1920×720
Panel
LCD
Refresh rate
75 Hz
Software updates (minimum)
8 years
Guarantee (supplier)
3 years
Spare parts (minimum)
7 years

Model numbers and history

Registered by Asus under one model number.

XG129C

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

Questions

How much does the Asus XG129C cost to run?

At 4 hours a day it uses about 9 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €2 a year, or €25 over ten years.