--- product_id: 167630938 title: "4 Pack USB Brushless Cooling Fan 40mm High Performance DC 5V Speed 4200 RPM for Small Appliances Series Replacement For Desktop" brand: "umlife" price: "NT$577" currency: TWD in_stock: true reviews_count: 8 category: "Umlife" url: https://www.desertcart.tw/products/167630938-4-pack-usb-brushless-cooling-fan-40mm-high-performance-dc store_origin: TW region: Taiwan --- # 4200 RPM high-speed spin USB-powered plug & play Ultra-quiet 22 dBA noise 4 Pack USB Brushless Cooling Fan 40mm High Performance DC 5V Speed 4200 RPM for Small Appliances Series Replacement For Desktop **Brand:** umlife **Price:** NT$577 **Availability:** ✅ In Stock ## Summary > ❄️ Stay cool, stay ahead — power your gear with silent precision! ## Quick Answers - **What is this?** 4 Pack USB Brushless Cooling Fan 40mm High Performance DC 5V Speed 4200 RPM for Small Appliances Series Replacement For Desktop by umlife - **How much does it cost?** NT$577 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/167630938-4-pack-usb-brushless-cooling-fan-40mm-high-performance-dc) ## Best For - umlife enthusiasts ## Why This Product - Trusted umlife brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Yet Mighty:** Slim 40x40x10mm design fits seamlessly into tight spaces for versatile use. - • **Whisper-Quiet Operation:** At only 22 dBA, enjoy powerful cooling without the distracting noise. - • **Reliable Oil Bearing Tech:** Durable brushless motor ensures long-lasting, maintenance-free performance. - • **Turbocharged Cooling Power:** 4200 RPM delivers rapid airflow to keep your devices chill and efficient. - • **Plug & Play USB Convenience:** No wiring hassle—just connect and cool instantly with universal USB compatibility. ## Overview This 4-pack of 40mm USB brushless cooling fans offers high-performance airflow at 4200 RPM with ultra-quiet 22 dBA noise levels. Designed for small appliances and desktops, these compact fans feature oil bearing motors for durability and easy USB plug-and-play connectivity, making them the perfect upgrade for efficient, silent cooling in tight spaces. ## Description Buy 4 Pack USB Brushless Cooling Fan 40mm High Performance DC 5V Speed 4200 RPM for Small Appliances Series Replacement For Desktop: Case Fans - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Perfect little fans for what I need - I actually needed two of these and went ahead and bought the four pack just in case one of them might give me trouble. They all function perfectly and I didn't have to worry about cutting and splicing wires. just plugged them into a USB charging adapter. This was a great price for four of these fans. Review: good for a desktop green house! - im using this little fan for a desktop green house, It does wonderfully to circulate air. i wasnt sure if the moisture or humidity would be a problem but havent come across anything yet. while I have a very limited idea of what this is original for but i dont think its this lmfao. it does make a noticeable amount of noise if i dont have my headphones on its not annoying or high-pitched. ## Features - ❃❃ Fan size: 40x40x10mm(L*W*H); Rated Voltage: 5V DC, Current: 0.21A. - ❃❃ Airflow: 3CFM, Speed: 4200±5%PRM, Noise: 22 DBA. - ❃❃ Bearing Type: Oil Bearing. - ❃❃ Lead Wire: USB; Length: Approx.1m / 39.37 in. - ❃❃ Package Included: 4 * DC brushless fans.(Notice: 'DO NOT GET WET' or 'Put it in a humid environment'; Or it will stop working. Any questions, you can contact us and we will help you.) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07ZJ47Z2J | | Air Flow Capacity | 3 Cubic Feet Per Minute | | Best Sellers Rank | #58 in Computer Case Fans | | Brand | UMLIFE | | Color | 5V USB(4010) | | Compatible Devices | Desktop | | Cooling Method | Air | | Customer Reviews | 4.3 4.3 out of 5 stars (1,867) | | Date First Available | April 2, 2019 | | Item Dimensions LxWxH | 1.57 x 0.39 x 1.57 inches | | Item Weight | 0.01 ounces | | Item model number | 4010-5V | | Manufacturer | UMLIFE | | Material | Lead | | Maximum Rotational Speed | 4200 RPM | | Noise Level | 22 Decibels | | Number of Items | 4 | | Power Connector Type | USB two-pin | | Product Dimensions | 1.57"L x 0.39"W x 1.57"H | | UPC | 701715431195 | | Voltage | 5 Volts | | Wattage | 1.05 watts | ## Product Details - **Brand:** UMLIFE - **Compatible Devices:** Desktop - **Cooling Method:** Air - **Material:** Lead - **Maximum Rotational Speed:** 4200 RPM - **Noise Level:** 22 Decibels - **Power Connector Type:** USB two-pin - **Product Dimensions:** 1.57"L x 0.39"W x 1.57"H - **Voltage:** 5 Volts - **Wattage:** 1.05 watts ## Images ![4 Pack USB Brushless Cooling Fan 40mm High Performance DC 5V Speed 4200 RPM for Small Appliances Series Replacement For Desktop - Image 1](https://m.media-amazon.com/images/I/61pVawYY00L.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect little fans for what I need *by F***O on November 1, 2025* I actually needed two of these and went ahead and bought the four pack just in case one of them might give me trouble. They all function perfectly and I didn't have to worry about cutting and splicing wires. just plugged them into a USB charging adapter. This was a great price for four of these fans. ### ⭐⭐⭐⭐⭐ good for a desktop green house! *by K***N on October 25, 2025* im using this little fan for a desktop green house, It does wonderfully to circulate air. i wasnt sure if the moisture or humidity would be a problem but havent come across anything yet. while I have a very limited idea of what this is original for but i dont think its this lmfao. it does make a noticeable amount of noise if i dont have my headphones on its not annoying or high-pitched. ### ⭐⭐⭐⭐ Good Quiet Fan, But WIRED BACKWARDS! *by L***E on May 14, 2021* When I installed these on my 3d printer, I cut and crimped all 4 fans by normal convention (black negative, red positive). None of the 4 worked. However, I came back to Amazon and read through some reviews were talking about faulty wiring. I reversed the crimps in the JST housing and they now work perfectly! These fans have good air flow and are much quieter than the stock 4010 fan on my Voxelab Aquila (Ender 3v2 clone). Good value for the money. There's a slight high pitched whine, but it gets quickly drowned out once the parts fan, PSU, and MCU fans get going anyways. No heat creep even on long prints thus far. ## Frequently Bought Together - 4 Pack USB Brushless Cooling Fan 40mm High Performance DC 5V Speed 4200 RPM for Small Appliances Series Replacement For Desktop - TEAYIR (Pack of 2) 3 AA Battery Holder, 3 AA Battery Case Box Holder 4.5-5V with Cover and On/Off Switch, with USB Cable --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tw/products/167630938-4-pack-usb-brushless-cooling-fan-40mm-high-performance-dc](https://www.desertcart.tw/products/167630938-4-pack-usb-brushless-cooling-fan-40mm-high-performance-dc) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-04-23*