be quiet! Silent Loop 3 420mm Liquid Cooler
Price history summary
Lowest new price we recorded at major retailers (Amazon, Walmart, Best Buy, Target, The Home Depot and Lowes) in the last 90 days: $327.99 at Best Buy on Jul 22, 2026.
Range over the last 12 months: $288.99 (Best Buy, Jun 1, 2026) to $399.99 (Best Buy, Jun 18, 2026). Based on 4 recorded prices since Jun 1, 2026 for offers sold by these retailers themselves (not marketplace sellers). Summary as of Oct 18, 2026.
Share this chart
Pros
- •The cooler features three Silent Wings 4 140mm PWM fans, providing quiet yet effective cooling performance.
- •The 6-pole motor design contributes to smoother operation and reduced noise levels.
- •Discreet ARGB lighting adds a subtle aesthetic touch without being overly flashy.
- •The refillable design allows for easier maintenance and longer lifespan.
- •Runs very quietly even under high load conditions.
- •High-quality build and durable components reflect be quiet!'s reputation.
- •Sleek black design fits well with various build styles and themes.
- •420mm radiator size achieves excellent cooling performance for high-end CPUs.
- •Smooth operation of the pump with fewer vibrations or noises.
- •Simple installation process praised by several reviewers.
Cons
- •Requires a spacious case due to the 420mm radiator size, limiting compatibility.
- •Discreet ARGB lighting is less intense compared to more flamboyant options.
- •Refillable feature may require extra upkeep that some users find inconvenient.
- •Relatively expensive, especially considering case and space requirements.
- •Some rare reports of minor leaks.
- •Limited compatibility with smaller or mid-tower cases.
- •Less ideal for users seeking maximum aesthetics, as lighting is subtle.
- •Black color may absorb more heat, though generally not a major concern.
- •Price might be harder to justify compared to other high-performance coolers.
- •Maintenance may be needed over time to keep the refill port clean and functioning properly.
Bottom Line
If you're after a quiet, high-performance liquid cooler with premium build quality and subtle RGB lighting, the be quiet! Silent Loop 3 420mm is a solid choice. Just keep in mind that its large size requires a spacious case and some extra upkeep with the refillable system. If you're looking for something more visually flashy or budget-friendly, you might want to consider other options. For a balance of silence, reliability, and discreet aesthetics, this cooler is definitely worth considering.
📚More About be quiet! Silent Loop 3 420mm Liquid Cooler
Discussion
ShopSavvy compares prices across thousands of retailers so you always get the best deal. Prices are collected from retailer listings, and each one shows the date we last saw it. Our expert reviews and community discussion help you make informed buying decisions.