Thermalright TL-C12C-S CPU Fan vs MoKo 400x300mm DIY PC Case Dust Mesh Filter

Performance & Cooling Efficiency

The Thermalright TL-C12C-S is engineered for active cooling performance, while the MoKo 400x300mm filter serves a passive protective role. The TL-C12C-S delivers up to 66.17CFM of air flow and 1.53mm H₂O of static pressure, enabling effective heat dissipation across CPUs and cases. Its 4-pin PWM interface allows dynamic speed control based on motherboard temperature signals, with a maximum speed of 1500RPM. In contrast, the MoKo filter does not contribute to cooling; its sole function is to block dust entry without restricting airflow. With 1mm holes in the mesh, it maintains ventilation while preventing debris from entering the system. This means the TL-C12C-S actively improves thermal performance, whereas the MoKo filter preserves existing airflow conditions by filtering particles.

Noise Levels & Operational Characteristics

The Thermalright TL-C12C-S operates at a noise level of ≤25.6dBA, which is notably quiet for a fan capable of reaching 1500RPM. Its S-FDB bearing technology minimises vibration and blade shake, contributing to low noise during operation. The fan’s PWM control ensures it only runs as fast as needed, reducing unnecessary sound at lower temperatures. The MoKo filter, meanwhile, produces no noise at all since it has no moving parts. It functions entirely passively, relying on magnetic attachment rather than power or mechanical motion. While the TL-C12C-S balances performance and silence through intelligent speed regulation, the MoKo filter remains completely silent by design—offering zero acoustic impact but also no active cooling benefit.

Lighting & Aesthetic Integration

The Thermalright TL-C12C-S includes a 5V 3-pin ARGB lighting interface, supporting up to 17 distinct light effects that can be synchronised via the motherboard. This makes it ideal for users seeking vibrant, customisable RGB aesthetics within their PC build. The high-brightness LED blades enhance the visual effect, creating a soft, reflective glow that complements case and cooler designs. In contrast, the MoKo 400x300mm filter is available only in black and provides no lighting features whatsoever. It is purely functional, with no aesthetic enhancements. For those prioritising visual appeal and colour coordination across components, the TL-C12C-S offers significant advantages over the MoKo’s plain, non-illuminated design.

Build Quality & Material Design

The Thermalright TL-C12C-S uses S-FDB bearings, a premium bearing type known for durability and reduced friction, which helps extend the fan’s lifespan and maintain smooth rotation. It measures 120×120×25mm and comes with a 55cm PWM cable, offering flexibility in routing and installation. The MoKo filter, on the other hand, is made from PVC material with a magnetic frame strip. It is designed for easy installation: the 8 included 400mm magnetic strips allow the mesh to attach securely to metal chassis without drilling or adhesive damage. Its modular nature enables cutting to fit various case ports. While both products use robust materials for their intended purposes, the TL-C12C-S focuses on long-term mechanical reliability, whereas the MoKo excels in ease of assembly and adaptability.

Price & Value Comparison

The Thermalright TL-C12C-S is priced at £15.90, while the MoKo 400x300mm filter costs £12.99—making the MoKo about 18% cheaper. Over the past 30 days, the MoKo has consistently sold at its current price (£12.99), indicating stable pricing with no discounts. The TL-C12C-S, however, has an average price of £9.84 over the last 30 days, suggesting it often sells below its current listing. This implies that buyers may find better value in purchasing the Thermalright during sales, though it currently trades at a higher premium. For users focused strictly on cost per unit, the MoKo offers immediate savings, but the TL-C12C-S delivers far greater functional value despite its higher price point.

Use Cases & Functional Purpose

The Thermalright TL-C12C-S is designed for active cooling integration—it can be used as a case fan, CPU cooler fan, or radiator-mounted fan. Its versatility makes it suitable for multiple roles in a PC’s cooling chain. The MoKo filter, by contrast, is solely a dust barrier. It protects internal components by blocking dust and hair through its 1mm mesh, helping prolong the life of fans, heatsinks, and electronics. It is especially useful in dusty environments or for users who prefer minimal maintenance. While the TL-C12C-S enhances performance, the MoKo preserves it by keeping the system clean. They serve fundamentally different roles: one boosts cooling, the other safeguards against contamination.

Which should you buy?

If your priority is improving cooling efficiency, reducing heat, and enhancing your PC’s visual appeal with ARGB lighting, the Thermalright TL-C12C-S is the clear choice. At £15.90, it offers advanced PWM control, strong airflow (66.17CFM), and premium bearing technology, making it ideal for builds where thermal performance and aesthetics matter. However, if you’re looking to protect your PC from dust without adding noise or complexity, the MoKo 400x300mm DIY filter at £12.99 is a practical, low-cost solution. It provides effective filtration with magnetic mounting, requires no tools, and maintains airflow. Ultimately, the Thermalright TL-C12C-S justifies its higher price with active performance benefits, while the MoKo filter offers essential protection at a lower cost—buy one based on whether you need cooling enhancement or dust prevention.