Prusa switches between two different 5v fans on their Prusa MK3S Kits.
Type B Delta Fan
Type A Noctua Fan NF-A4x10-5V (This Listing)
We also sell the Noctua fan in the Noctua NF-A4x10-5V Kit direct from Noctua if these are both out of stock however you will need to solder the wires as it does not come with correct length wire/connector.
Noctua NF-A4x10 5V 40mm Fan
Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and an AAO standard frame, the NF-A4x10 5V is a dedicated 5V version of Noctua’s highly optimised, premium quality quiet 40x10mm fan. Smooth Commutation Drive technology and Noctua’s reference class SSO2 guarantee superb running smoothness and excellent long-term stability. Topped off with modular cabling, the OmniJoin™ Adaptor Set and 6 years manufacturer’s warranty, the NF-A4x10 5V is a premium choice for demanding 5V applications.
This product is the replacement Hotend fan. It is ONLY compatible with the MK3/S/+. The MK2.5/S Rambo requires the v-cable adapter, the fan can NOT be connected to the MK2.5/S Rambo directly.
This product is the replacement Hotend fan. It is ONLY compatible with the MK3/S/+. The MK2.5/S Rambo requires the v-cable adapter, the fan can NOT be connected to the MK2.5/S Rambo directly.
Why Choose Phaser FPV?

Here’s Why 1000s of Buyers Trust Us
In the sky-high world of FPV drones and related products, Phaser FPV takes you higher and further – while ensuring a smooth ride every step of the way. As a human brand that puts its clients first, here are a few of the ways we keep giving our customers reasons to come back.

Same-Day Ship
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