TSUJ
TSUJ Kepler-C72J-OYS-0338 4020 4cm 2-Wire Chassis Cooling Fan 2 in 1 accessory
A 4 cm two-wire chassis fan running at 12 V and 0.18 A for compact cooling
- FeaturesDC12V 0.18A SA120420BL 4020 4cm 2-Wire Chassis Large air Vol
- 12 V DC power suits standard chassis headers
- 18 A draw keeps system load low
- 4020 frame fits compact 4 cm mounting points
- SA120420BL blade design moves large air volume
4 cm 2-Wire Chassis Fan for Compact Systems
This 40 mm two-wire cooling fan operates at 12 V and draws 0.18 A, delivering high airflow in a small frame. It is designed for tight enclosures such as 2-in-1 laptops, mini PCs or embedded boards where space is limited.
Airflow capacity and thermal limits
The fan moves a large volume of air for its size, keeping components cool under moderate loads. It will not sustain heavy continuous heat output from high-wattage CPUs or GPUs, so builders needing greater thermal headroom should consider larger or additional cooling.
Highlights
- 12 V DC power suits standard chassis headers
- 18 A draw keeps system load low
- 4020 frame fits compact 4 cm mounting points
- SA120420BL blade design moves large air volume
Specifications
| Brand | TSUJ |
|---|---|
| Part Number | Kepler-C72J-OYS-0338 |
| Features | DC12V 0.18A SA120420BL 4020 4cm 2-Wire Chassis Large air Volume Cooling Fan |
Questions about this item
Will the 12 V 0.18 A fan run safely from the same 12 V header that powered my old 4020 model?
Yes, the 12 V 0.18 A rating matches a standard 12 V header, so it will draw the expected current without overloading the connector.
How can I confirm the 4020 fan is moving air correctly after I install it?
Power the system, listen for steady rotation, and hold a light tissue near the exhaust — it should be drawn firmly toward the grille.
New to this? Buying a laptop with crypto, start to finish — what to check, what it costs to pay, and what is never asked for.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.



