ThermalrightTL-B4020 4CM chassis cooling fan，40x40x20mm/Double ball bearings/High air volume 5500RPM/computer cooling fan
$8.25
Today it costs $8.25 on AliExpress. Since Oct 22, 2026, when we started tracking it, it ranged from $8.25 to $8.59. We haven't tracked it long enough yet to say whether it's on sale.
We have tracked this product for 2 days; confirming a drop takes at least 3 days. The store advertises "was $17.55", but that is the store's own claim; we only state discounts our price history proves.
View on AliExpressThe price above is the last recorded reading, not a live checkout lookup.
Price history
Today$8.25lowest ever seen
Lowest$8.25since Oct 24
Highest$8.59Oct 23 to Oct 24
Tracked since Oct 22 · 2 changesHover over the chart to see each price.Tap the chart to see each price.
See every price change
| When | Price | Change |
|---|---|---|
| Oct 24, 22:08 UTC | $8.25 | −4% |
| Oct 23, 05:07 UTC | $8.59 | +0.5% |
| Oct 22, 19:34 UTC | $8.55 | start |
| Store | Thermalright Official Store |
|---|---|
| Product rating | — |
| Store rating | — |
| AliExpress category | Computer & Office › Computer Components |
| Recorded readings | 3 |
| First seen | 10/22/2026 |
| Last reading | 10/24/2026, 10:08:15 PM UTC |
Also sold by 1 other store
Same title and category on AliExpress, cheapest first. Each store has its own price and history; check the variant and shipping.
| Thermalright Official Store · Ships from US | $8.59 · 57 sold |
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