
Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctua’s AAO frame, the NF-A4x20 5V is a dedicated 5V version of Noctua’s highly optimised, premium quality quiet 40x20mm fan. Smooth Commutation Drive technology and Noctua’s reference class SSO2 bearings 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-A4x20 5V is a premium choice for demanding 5V applications. Please note: Being a 5V fan, the NF-A4x20 5V cannot be run at 12V and will be damaged when used with typical 12V power sources such as PC motherboard fan headers.
| Brand Name | Noctua |
| Manufacturer | Noctua |
| Item Type | Case Fans · Computers & Accessories |
| Shipping Weight | 70 g |
| Package Dimensions | 14.1 × 11.1 × 2.7 cm |
| Category | Computers & Accessories › Components › Fans & Cooling › Case Fans |
| Category Rank | #189,136 in Computers & Accessories |
| Marketplace Rating | 4.8 out of 5 (380 ratings on the source marketplace) |
| EAN | 0841500110123 |
| UPC | 841500110123 |
| Attributes | Premium quiet fan, 40x40x20 mm,… · Award-winning A-series design… |



