It took me reviewing several documents to gather information on my UDOO x86 (mine is Advanced Plus.) I think the info may also be useful for some of you. On Intel Braswell side: CPU: N3160 4-core 2MB cache TDP: 6W and SDP: 4W. UEFI/BIOS 8MB SPI flash 1.8V I/O on outer edge of these CN12-CN15 connectors: GPIO, SDIO, LPC, I2C_1 (touch screen), I2C_2, UART1, and UART2 NGFF M.2 socket 2 "Key B": either mSATA or PCIe up to x2 <- 2260 (2280 will poke out 2 cm) <---- VERY important: NVMe (which is M-key only) in this Key-B slot is not supported NGFF M.2 socket 1 "Key E": USB2.0 + PCIe x1 (mainly for WiFi/BT card) eMMC (mine is 32,000,000,000 Bytes, which is approx 29.7GB) SanDisk DF4032 (which is also used in Intel Compute Stick - Z8300 flavor) On Arduino 101 side: Intel Curie module (runs at 3.3V) which has one 32MHz Intel (x86) Quark SE C1000 processor and one ARC EM4 DSP/floating point processor both processors share 384KB flash (196KB usable for Arduino) and 80KB SRAM (24KB usable) Curie also has a BLE (Nordic nRF51822) and 6-axis IMU (Bosch BMI160 accelerator + Gyro) Curie's JTAG connector is CN28 and Curie drives the "brick" connector thru I2C Arduino 101 also has a 25Q16 2MB SPI flash Arduino connectors are on inner edge of these CN12-CN15 connectors (3.3V I/O, 5V tolerant) It's ICSP (6-pin SPI connector) is CN16 on the bottom side. Arduino 101 communicates with Intel Braswell thru USB (which is using Braswell's USB #3) There is a STMicro's processor: STM32F100C4T6 (Cortex-M3) which performs some housekeeping tasks (fan controller, consumer IR, HDMI's CEC channel) and some button I/Os. CN23 is its JTAG connector (reserved.) Power: 12V +- 5% using 5.5x2.1mm DC jack. ccs_hello