Acer computer, ENERGY STAR certified
Acer N21Q9
8 GB notebook computer, model number CB315-4H.
Memory
8 GB
Processor
Pentium Silver N6000
Typical electricity use
10.1 kWh/yr
NPU installed
No
Of 980 certified notebook business computers, 163 have a lower typical electricity use than the N21Q9 (10.1 kWh/yr).
Its certified typical electricity use of 10.1 kWh/yr costs about $1.31 a year at 13¢/kWh.
- Maker
- Acer
- Model
- N21Q9
- Model number
- CB315-4H
- Type
- Notebook
- Processor
- Pentium Silver N6000
- CPU cores
- 4
- Memory
- 8 GB
- NPU installed
- No
- Storage
- SDD
- Screen
- 15.6 in
- Battery
- 50 Wh
- Operating system
- Chrome OS
- Marketed as a workstation
- No
- Typical electricity use
- 10.1 kWh/yr
- Power in sleep
- 0.4 W
- Power at long idle
- 0.4 W
- Power when off
- 0.3 W
- On the market since
- Oct 2025
- ENERGY STAR certified
- 20 Oct 2025
Certified under the same record
The maker lists these as the same machine or a variant of it: CB315-4HT.
Source: ENERGY STAR certified business computers dataset, US EPA, record 4512363, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the N21Q9
Certified business computers from other makers, same color class, within 20% of its speed.
| Model | Type | Processor | Memory | Typical electricity use |
|---|---|---|---|---|
| Lenovo IdeaPad Duet 3 11IAN8 | Notebook | Pentium n200 | 8 GB | 12.8 kWh/yr |
| HP Chromebook 14 G6 ENERGY STAR | Notebook | Celeron N4120 | 8 GB | 9.1 kWh/yr |
| ASUS E410KA | Notebook | Pentium | 8 GB | 10.3 kWh/yr |
| DELL P33T | Notebook | N200 | 8 GB | 9 kWh/yr |
| Lenovo IdeaPad Slim 3 14IAN8 | Notebook | i3-N305 | 8 GB | 10.2 kWh/yr |
| Lenovo IdeaPad Slim 3 15IAN8 | Notebook | i3-N305 | 8 GB | 8.5 kWh/yr |
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|---|---|---|---|---|
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| N20Q10 | Notebook | Celeron N4500 | 8 GB | 8.9 kWh/yr |
| N26LD1 | Notebook | Core i7 | 8 GB | 10.3 kWh/yr |
| AG15-I31P | Notebook | Core i3 | 8 GB | 12.9 kWh/yr |
| CLNBIWC14 | Notebook | lntel(R) Core(TM) 7 350 | 32 GB | 12.1 kWh/yr |
| CLNBIWC15 | Notebook | lntel(R) Core(TM) 7 350 | 32 GB | 12.9 kWh/yr |