M.2 port
The M.2 port is an internal expansion slot for cellular modems, Wi-Fi, SDR, NVMe SSDs, GNSS modules, AI accelerators, and similar off-the-shelf M.2 modules. It sits at the back of the device, under the Back Plate.
Tech specs:
- M.2 type: Key B
- Supported sizes: 2230(via extender), 2242, 3042, 3052
- Supported thickness: up to S3 (single-sided modules)
- Interfaces: PCIe 2.1 ร1 / USB 2.0 / USB 3.1 / SATA3 / Serial Audio / UART / IยฒC / SIM card + eSIM
M.2 port schematic
M.2 port pinout
Description | PIN | PIN | Description |
|---|---|---|---|
โ | โ | 1 | CONFIG_3 |
3.3V | 2 | 3 | GND |
3.3V | 4 | 5 | GND |
FULL_CARD_POWER_OFF# (O)(0/1.8V or 3.3V) | 6 | 7 | USB_D+ |
W_DISABLE1# (O)(0/1.8V/3.3V) | 8 | 9 | USB_D- |
GPIO_9/DAS/DSS (I/O)/LED_1# (I)(0/3.3V) | 10 | 11 | GND |
CONNECTOR KEY B | โ | โ | CONNECTOR KEY B |
GPIO_5 (I/O)(0/1.8V) | 20 | 21 | CONFIG_0 |
GPIO_6 (I/O)(0/1.8V) | 22 | 23 | GPIO_11 (I/O)(0/1.8V) |
GPIO_7 (I/O)(0/1.8V) | 24 | 25 | DPR (O)(0/1.8V) |
GPIO_10 (I/O)(0/1.8V) | 26 | 27 | GND |
PLA_S2# (I)/GPIO_8 (I/O)(0/1.8V) | 28 | 29 | PERn1/USB3.1-Rx-/SSIC-RxN |
UIM_RESET (I) | 30 | 31 | PERp1/USB3.1-Rx+/SSIC-RxP |
UIM_CLK (I) | 32 | 33 | GND |
UIM_DATA (I/O) | 34 | 35 | PETn1/USB3.1-Tx-/SSIC-TxN |
UIM_PWR (I) | 36 | 37 | PETp1/USB3.1-Tx+/SSIC-TxP |
DEVSLP (O) | 38 | 39 | GND |
GPIO_0 (I/O)/SMB_CLK (I/O)/(0/1.8V) | 40 | 41 | PERn0/SATA-B+ |
GPIO_1 (I/O)/SMB_DATA (I/O)/(0/1.8V) | 42 | 43 | PERp0/SATA-B- |
GPIO_2 (I/O)/ALERT# (I)(0/1.8V) | 44 | 45 | GND |
GPIO_3 (I/O)(0/1.8V) | 46 | 47 | PETn0/SATA-A- |
GPIO_4 (I/O)(0/1.8V) | 48 | 49 | PETp0/SATA-A+ |
PERST# (O)(0/1.8V/3.3V) | 50 | 51 | GND |
CLKREQ# (I/O)(0/1.8V/3.3V) | 52 | 53 | REFCLKn |
PEWAKE# (I/O)(0/1.8V/3.3V) | 54 | 55 | REFCLKp |
NC | 56 | 57 | GND |
NC | 58 | 59 | ANTCTL0 (I)(0/1.8V) |
COEX3 (I/O)(0/1.8V) | 60 | 61 | ANTCTL1 (I)(0/1.8V) |
COEX_TXD (O)(0/1.8V) | 62 | 63 | ANTCTL2 (I)(0/1.8V) |
COEX_RXD (I)(0/1.8V) | 64 | 65 | ANTCTL3 (I)(0/1.8V) |
SIM DETECT (O) | 66 | 67 | RESET# (O)(0/1.8V) |
SUSCLK (O)(0/1.8V/3.3V) | 68 | 69 | CONFIG_1 |
3.3 V/VBAT | 70 | 71 | GND |
3.3 V/VBAT | 72 | 73 | VIO_CFG (I) or GND |
3.3 V/VBAT | 74 | 75 | CONFIG_2 |