Computers › Electronic components
USB Boost Converter DC 5V to 9V 12V USB Step-up Converter Cable + 3.5x1.35mm Connecter For Power Supply/Charger/Power Converter
Quick answer
Is $3.09 a good price for USB Boost Converter DC 5V to 9V 12V USB Step-up Converter Cable +…?
It is the usual price, not a deal: $3.09 is in line with the typical price of $3.12 that DipScout measured over the last 12 days. It is the lowest in 12 days, but it has held this price since Nov 6, 2026.
$3.09
Today it costs $3.09 on AliExpress. Since Oct 28, 2026, when we started tracking it, it ranged from $3.09 to $3.15. It's the lowest price in 12 days, but it has been at this value since Nov 6, 2026; by our price history that is already the normal price, not a sale.
No drop compared with what we observed over the last 12 days. The store advertises "was $9.09", 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
Last reading$3.09on Nov 7
Lowest$3.09Nov 6 to Nov 7
Highest$3.15Oct 28 to Nov 2
Tracked since Oct 28 · 2 changesHover over the chart to see each price.Tap the chart to see each price.
See every price change
| When | Price | Change |
|---|---|---|
| Nov 6, 10:04 UTC | $3.09 | −1.0% |
| Nov 2, 23:03 UTC | $3.12 | −1.0% |
| Oct 28, 12:18 UTC | $3.15 | start |
| Store | Wanzai Store |
|---|---|
| Positive feedback (AliExpress) | — |
| AliExpress category | Electronic Components & Supplies › Active Components |
| Recorded readings | 3 |
| First seen | |
| Last reading |
Also sold by 4 other stores
Same title and category on AliExpress, cheapest first. Each store has its own price and history; check the variant and shipping.
| Stone's Store · Ships from US | $2.45 · 1570 sold |
|---|---|
| JYJD Module Store · Ships from US | $2.79 · 717 sold |
| JYJD Module Store | $3.15 · 108 sold |
| Stone's Store | $3.49 · 727 sold |