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Alseye Halo D-RGB vs SilverStone FN121: Comparison
Alseye Halo D-RGB and SilverStone FN121 separate most on static pressure: Alseye Halo D-RGB at 1.9, SilverStone FN121 at 1.1, 42% in favour of Alseye Halo D-RGB. Airflow splits them by another 21%, again favouring Alseye Halo D-RGB. They match on 4 other specifications, including fan size, pwm control and positioning.
Specs
| Specification | ![]() | ![]() |
|---|---|---|
| Fan Size | 120 | 120 |
| Brand | Alseye | SilverStone |
| Model | Halo D-RGB 120 | FN121 |
| Bearing Type | Hydraulic | Rifle |
| Lighting | ARGB | No RGB |
| Static Pressure | 1.9 | 1.1-42% |
| Max Speed | 1800 | 1500-17% |
| Noise Level | 27.0+7 dBA | 20.0 |
| Airflow | 56.0 | 44.5-21% |
| PWM Control | true | true |
| Positioning | Budget | Budget |
| Connector | 4-pin PWM + 3-pin ARGB | 4-pin PWM |
| Colors | Black | Black |
Price comparison
| Retailer | Alseye Halo D-RGB | SilverStone FN121 |
|---|---|---|
| Alseye | View on Alseye | |
| SilverStone | View on SilverStone |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
Alseye Halo D-RGB
5 / 10 Expert Rating
A budget ARGB fan good enough for filling out a case cheaply, not a fan you buy for standout performance.
SilverStone FN121
6 / 10 Expert Rating
An unremarkable but reliably quiet budget fan for general case airflow.




