Waveshare Mini Base Board A for Raspberry Pi 4 Compute Module, Base Board A For Raspberry Pi CM4

1. USB:
- USB 2.0 x 2
- USB 2.0 x 2 (via FFC connector)
2. GPIO: Raspberry PI 40 Pin GPIO
3. Header: m.2 slot x 1
4. Support HD interface: HDMI X 2, 1x via FFC connector, support 4K 30FPS
5. DSI Display: MIPI DSi X 1 (15pin 1.0mm FPC)
6. CSI Camera: MIPI CSI-2 x 2 (15pin 1.0mm FPC)
7. Power input: 5V
8. Fan: 5V/12V (no fan control)
9. RJ45 Ethernet: Gigabit Ethernet
10. Slot cm4: suitable for all variants of the computing module 4
11. SD card slot: microSD card socket for Compute Modules 4 lite (without EMMC) Variants
12. Dimensions: 85.0 x 56.0mm