HiLetgo
HiLetgo 4pcs DC 12V 4010 Fan 3Pin Computer CPU Cooler Mini Cooling Fan 40x40x10mm Small Exhaust Fan for Ender 3 CR10 3D Printer
Bottom line: The HiLetgo 4pcs DC 12V 4010 Fan 3Pin Computer CPU Cooler Mini Cooling: 4000 RPM at only 18dB rated noise for a 40mm fan; main trade-off: yellow tach wire is non-functional, so no RPM readout.
As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →
Pros & Cons
Pros
- ✓ 4000 RPM at only 18dB rated noise for a 40mm fan
- ✓ 18.17-25.97 CFM airflow from a 40x40x10mm frame
- ✓ 22cm lead with KF2510 3-pin plug reaches most headers
- ✓ Sized for GPU and Northbridge fan replacements on retro boards
Cons
- ✗ Yellow tach wire is non-functional, so no RPM readout
- ✗ No PWM control, the fan runs full speed on 12V only
- ✗ Bulk packaging, no screws, grilles, or mounting hardware
- ✗ 10mm thickness limits static pressure through dense heatsinks
Manufacturer description
4010S 40mm x40mm x10mm Brushless DC Cooling FanDimensions: 40mm × 40mm × 10mmSpeed Reference: 4000 ± 10% RPMNoise Reference: 18DBAir volume reference :18.17-25 .97 CFMRated voltage: 12VRated current: 0.10APackage Type: BulkScope: graphics, Northbridge fan replacementLead Length: 22CM, with KF2510 3P plugThe yellow line is no function and cannot adjust the fan speed.
SpecPicks Verdict
SpecPicks scored HiLetgo 4pcs DC 12V 4010 Fan 3Pin Computer CPU Cooler Mini Cooling… using a rating × review-volume × price-fit model applied to published specs and reviews across the retro cpu coolers & fans category. HiLetgo's retro cpu coolers & fans lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for retro cpu coolers & fans of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- HiLetgo 4010S Cooling Fan Brushless DC Cooling Fan
- Noise Reference: 18DB
- Rated voltage: 12V
- 40mm x40mm x10mm
- The yellow line is no function and cannot adjust the fan speed
Full Specifications
| Brand | HiLetgo |
|---|---|
| Model | 3-01-0186 |
| Voltage | 12 volts |
| Wattage | 1.2 watts |
| Material | lead |
| Dimensions | 40x40x10mm |
| Unit Count | 4 Count |
| Noise Level | 18 db |
| Part Number | 3-01-0186 |
| Material Type | lead |
| Rated voltage | 12V |
| Cooling Method | Air |
| Noise Reference | 18DB |
| Number of Items | 4 |
| Air Flow Capacity | 25 cfm |
| Compatible Devices | Desktop |
| Power Connector Type | 3-Pin |
| Maximum Rotational Speed | 4000 rpm |
| Item Dimensions L x W x H | 1.57"L x 0.39"W x 1.57"H |
Ready to buy?
HiLetgo 4pcs DC 12V 4010 Fan 3Pin Computer CPU Cooler Mini Cooling Fan 40x40x10mm Small Exhaust Fan for Ender 3 CR10 3D Printer is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
Related Retro CPU Coolers & Fans
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- How to Build a Windows 98 Retro PC in 2026
- Best Retro Handhelds in 2026 — From $35 to $500
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- Best 1440p Gaming GPUs in 2026
More reviews from the SpecPicks archive
Browse all reviews →- RTX 3060 12GB vs RTX 4060 Ti 16GB for Qwen2.5-Coder 14B (2026)
- HyperX QuadCast 2 vs Blue Yeti for Streaming in an Untreated Room
- RetroArch PS3 Emulation: What Actually Works in 2026
- Building a 2002 Windows XP Gaming Rig: GeForce 4 Ti, Sound BlasterX G6, CompactFlash Boot
- US Forces Anthropic to Disable Claude Fable 5: Local Fallbacks
- Aider vs Cline vs Continue.dev for Local-LLM Coding on a 12GB GPU
- Best Cooler for a Ryzen 7 5800X: ML240L RGB V2 vs Kraken M22
- ROG Ally X vs Steam Deck OLED: Specs, Battery, Price (2026)
- Hobbyists Are Self-Hosting a Nintendo eShop With Ownfoil on a Raspberry Pi
- How to Run DeepSeek-R1 32B on Apple M4: Which Mac You Need + Real tok/s
- Strix Halo Clustering for Local LLMs: What the LocalLLaMA Reports Show
- Build a Silent Raspberry Pi 5 NAS with NVMe and Active Cooling in 2026
- Ryzen 5 5600X vs Ryzen 7 5800X: CPU-Only Qwen2.5 14B (2026)
- Best GPUs for Mixtral 8x22B Local Inference in 2026
- Lenovo G02 Retro Handheld Ships Preloaded With Thousands of Games
- MTP (Multi-Token Prediction): 2x Faster Token Generation on AMD Strix Halo & Radeon 9700 AI Pro
- Mac Mini M4 vs RTX 3060 12GB for Local LLMs: Which Actually Wins?
- Best Budget Gaming Audio for 2026: Headsets, Earbuds, Mics and DACs
- Best Streaming Kit for New Creators in 2026
- Best Amazon Workstation Parts for a Quiet Home Office in 2026
- Best Wireless Controller for PC Gaming in 2026
- Ryzen 9800X3D vs 7800X3D: Best CPU for an RTX 5070 Build
- Ex-Sega Engineer Builds a 'Super-Realistic' CRT Emulator
- Can a Raspberry Pi 4 8GB Run a Local LLM in 2026? Realistic tok/s
Earliest SpecPicks reviews
Browse full archive →- Best GPU for Llama 3.1 8B (2026)
- Best GPU for Qwen 3 14B (2026)
- Best GPU for Qwen 3 32B (2026)
- Best GPU for Llama 3.1 70B (2026)
- Best GPU for DeepSeek-R1 32B (2026)
- Best GPU for Llama 3.1 405B (2026)
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 14B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 70B on NVIDIA GeForce RTX 5090
- How to run DeepSeek-R1 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 4090