TENSTAR 2pcs MCP23017 Serial Interface Module IIC I2C SPI Bidirectional 16-Bit I/O Expander Pins 10Mhz Serial Module
Quick answer
Is $4.05 a good price for TENSTAR 2pcs MCP23017 Serial Interface Module IIC I2C SPI…?
It is the usual price, not a deal: $4.05 is in line with the typical price of $4.05 that DipScout measured over the last 3 days. Tracked since Oct 24, 2026, the price hasn't changed.
$4.05
Today it costs $4.05 on AliExpress. Since Oct 24, 2026, when we started tracking it, the price hasn't changed. By our price history, it is not on sale right now.
No drop compared with what we observed over the last 3 days. The store advertises "was $8.44", 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
$4.05
We started tracking this price on Oct 24. The chart takes shape over the days: we only draw prices we observed.
| Store | TENSTAR 02 Store |
|---|---|
| Product rating | — |
| Store rating | — |
| AliExpress category | Electronic Components & Supplies › Active Components |
| Recorded readings | 1 |
| First seen | 10/24/2026 |
| Last reading | 10/24/2026, 7:11:28 PM UTC |