Mini PCIe (PCI Express Mini Card) is a 52-pin connector for laptop expansion cards including Wi-Fi, Bluetooth, cellular modems, and SSDs (mSATA). Used from 2005 to present in laptops and embedded systems.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | WAKE# | Wake from sleep | I/O |
| 2 | 3.3V | 3.3V power | PWR |
| 3 | COEX1 | Bluetooth coexistence | I/O |
| 4 | GND | Ground | GND |
| 7 | CLKREQ# | Clock request | I/O |
| 8 | UIM_PWR | SIM card power | PWR |
| 11 | REFCLK- | Reference clock negative | BUS |
| 12 | UIM_DATA | SIM data | BUS |
| 13 | REFCLK+ | Reference clock positive | BUS |
| 20 | USB D- | USB 2.0 data negative | BUS |
| 21 | USB D+ | USB 2.0 data positive | BUS |
| 23 | PERST# | PCIe reset | I/O |
| 25 | PETXP | PCIe TX positive | BUS |
| 26 | PETXN | PCIe TX negative | BUS |
| 31 | PERXP | PCIe RX positive | BUS |
| 32 | PERXN | PCIe RX negative | BUS |
Mini PCIe (PCI Express Mini Card) is a 52-pin connector for laptop expansion cards including Wi-Fi, Bluetooth, cellular modems, and SSDs (mSATA). Used from 2005 to present in laptops and embedded systems.