Description
The Jonsbo CB40, part of the Little Snow series, represents the third generation of 4-heatpipe cooling technology. Engineered for high-performance builds, it utilizes a 120mm PWM fan and optimized fin density to dissipate up to 225W of heat. The design is highlighted by a classic circular hole pattern on the top cover, integrated with a metal nameplate and a long-strip infinite mirror effect for a sophisticated visual profile.
This product is for:
- Performance Enthusiasts: Users requiring stable thermals for CPUs like the Intel Core i5/i7 or AMD Ryzen 5/7 series.
- Aesthetic Builders: Those seeking a clean look with synchronized ARGB lighting and a premium mirror finish.
- Compact Case Owners: Builders with mid-tower cases that have a maximum CPU cooler clearance of 155mm.
- Quiet Computing Users: Individuals who prioritize low noise levels, as the fan operates as low as 21.8 dB(A).
- Future-Proofers: Builders looking for compatibility with the latest sockets, including Intel LGA 1851 and AMD AM5.
Detailed specifications:
- Dimensions: 120mm (L) x 71mm (W) x 153.5mm (H)
- Heat Pipes: 4 x 6mm high-performance anti-gravity copper pipes
- Thermal Design Power (TDP): 225W
- Fan Specifications: 120mm PWM, 800-1800 RPM, 37.77-77.07 CFM airflow
- Noise Level: 21.8 to 35.4 dB(A)
- Socket Support: Intel LGA 115X/1200/1700/1851; AMD AM4/AM5
- Warranty: 3-year limited warranty
Installing the CB40 is straightforward thanks to its offset heat pipe design, which ensures maximum clearance for high-profile RAM modules. In real-world operation, the anti-gravity heat pipes maintain consistent thermal conductivity regardless of the cooler's orientation, whether mounted vertically or horizontally. The 120mm fan balances static pressure and airflow effectively, keeping temperatures stable even under sustained workloads while the ARGB lighting integrates seamlessly with motherboard software.
Compared to standard 4-heatpipe towers, the Jonsbo CB40 stands out with its 225W TDP rating, which is typically reserved for larger dual-tower coolers. While many entry-level coolers struggle with the heat density of modern LGA 1700 or AM5 processors, the CB40’s optimized fin surface area and high-pressure fan provide a significant thermal headroom advantage without the bulk of a 160mm+ tall cooler.
Q&A:
- Is the Jonsbo CB40 compatible with the new Intel LGA 1851 socket? Yes, it supports the latest Intel LGA 1851 as well as LGA 1700, 1200, and 115X.
- Will this cooler fit in a standard mid-tower case? With a height of 153.5mm, it fits most standard ATX and Micro-ATX mid-tower cases.
- Does the CB40 interfere with RGB RAM? No, the offset heat pipe design is specifically engineered to provide clearance for memory modules.
- How do I control the lighting on the top cover? The cooler uses a standard 5V 3-pin ARGB interface compatible with most motherboard lighting software.
- What is the cooling capacity of this single tower? It is rated for a TDP of 225W, making it suitable for mid-to-high-end consumer CPUs.
