SXDOOL
SXDOOL DFS122512H 120mm 25mm 12V 3.4W 3-pin case fan
120 mm DC case fan with 25 mm depth, 12 V 3.4 W draw and 3-pin connection
- Low power draw at 3.4W for efficient cooling
- 120mm frame fits standard 120mm case mounts
- 25mm thickness matches common 12025 fan slots
- 3-pin connector enables speed monitoring by motherboard
- 12V DC operation suits standard PC power rails
120 mm DC case fan
The SXDOOL DFS122512H is a 120 mm square frame fan that runs on 12 V DC power and draws 3.4 W. It uses a three-pin connector for direct motherboard or controller attachment. The 25 mm thickness fits standard chassis mounting points. It is suited for builders adding or replacing a single exhaust or intake fan in a typical desktop case.
Sustained airflow and noise
At the rated 3.4 W the motor delivers steady airflow without the spin-up spikes seen in higher-wattage models. The three-wire design reports speed to the board but does not support PWM duty-cycle control, so voltage regulation determines the operating point. Acoustic output remains consistent during long sessions because the bearing and blade geometry are unchanged under load.
Installation notes
The 120 mm hole pattern aligns with common case mounts; four screws secure the 25 mm thick frame. The three-pin plug fits standard headers, but polarity must be observed to avoid reverse rotation. No PWM pin is present, so automatic fan curves relying on four-pin control will not function; voltage-based curves or fixed-voltage headers work instead.
Highlights
- Low power draw at 3.4W for efficient cooling
- 120mm frame fits standard 120mm case mounts
- 25mm thickness matches common 12025 fan slots
- 3-pin connector enables speed monitoring by motherboard
- 12V DC operation suits standard PC power rails
Specifications
No published specifications for this item yet.
Questions about this item
How loud does the 120mm 3.4W fan run when operating continuously?
The fan draws 3.4 watts at 12 volts, a low power level that typically results in quiet operation suitable for all-day use in a chassis.
What motherboard header is required to connect the 3-pin DFS122512H?
A standard three-pin DC fan header supplies the 12 V power and tachometer signal this model needs.
Will the 120mm x 25mm frame fit the same mounting points as my current 12025 fans?
Yes, the 120 mm square by 25 mm thick dimensions match the common 12025 form factor used for standard case-fan mounts.
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