here!
I’m your shopping assistant for PC builds, upgrades, and everything tech.
Got questions? Ask away!
Start a conversation
- Free 30-day Returns
$11.79
Ships from China.
Meet Your Seller
AJMRTC 4020 Silent Cooling Fan, 40x40x20mm 5V 0.6W 7200RPM MagLev Bearing Replacement Fan Compatible with KDE0504PKV2, for Server Network Switch North Bridge Chip Heat Dissipation
- - Direct Replacement: Matches KDE0504PKV2 fan, standard 40×40×20mm mounting size for simple installation
- - MagLev Bearing Design: Magnetic levitation bearing delivers low friction, quieter operation and extended working lifespan
- - Stable Performance: DC 5V 0.6W power, 7200 RPM rated speed, provides steady airflow for compact hardware cooling
- - Compact Size: Mini 40mm form factor, fits narrow space such as server, network switch and north bridge chipset
- - Low Vibration: Reduced vibration design, less noise while maintaining reliable heat dissipation for electronics
+
+
Overview
Specs
Reviews
Any questions? Ask CelesteSM will help you find out quickly.
Try me now
AJMRTC 4020 cooling fan is a drop-in replacement for KDE0504PKV2. This 40x40x20mm small fan runs at DC 5V, rated power 0.6W with 7200 RPM and adopts MagLev magnetic levitation bearing. It balances airflow and low noise performance perfectly.
MagLev bearing minimizes friction and vibration during rotation, bringing quieter operation and longer service life compared with ordinary bearings. Compact 40mm dimension makes it suitable for tight space cooling needs, widely used on servers, network switches, north bridge chips and other small electronic devices.
Please check your original fan size, voltage and power parameters before placing the order to ensure compatibility.
- Brand: AJMRTC
- Product Type: 4020 Cooling Fan
- Replacement Model: KDE0504PKV2
- Size: 40×40×20mm (40mm)
- Rated Voltage: DC 5V
- Rated Power: 0.6W
- Rated Speed: 7200 RPM
- Bearing Type: MagLev Bearing
- Application: Server, Network Switch, North Bridge Chip Cooling
- Package Includes: 1 × 4020 Cooling Fan
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
- CONTACT
Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by ThermalNest Return Policy
Manufacturer Contact Info
- For a directory of all our manufacturers, please click below.
- Manufacturers Directory
LOADING...