![Amazon.com: Ethernet/USB HUB HAT Expansion Board for Raspberry Pi 4B/3B+/3B/2B/Zero/Pi Zero W/Pi Zero 2W,with RJ45 10/100M Ethernet Port (Based on RTL8152B Chip) and Three USB Ports,Compatible with USB2.0/1.1 : Electronics Amazon.com: Ethernet/USB HUB HAT Expansion Board for Raspberry Pi 4B/3B+/3B/2B/Zero/Pi Zero W/Pi Zero 2W,with RJ45 10/100M Ethernet Port (Based on RTL8152B Chip) and Three USB Ports,Compatible with USB2.0/1.1 : Electronics](https://m.media-amazon.com/images/I/71XZY8cu-yL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Ethernet/USB HUB HAT Expansion Board for Raspberry Pi 4B/3B+/3B/2B/Zero/Pi Zero W/Pi Zero 2W,with RJ45 10/100M Ethernet Port (Based on RTL8152B Chip) and Three USB Ports,Compatible with USB2.0/1.1 : Electronics
![Zero4U - 4 Port USB Hub for Raspberry Pi Zero v1.3 : ID 3298 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits Zero4U - 4 Port USB Hub for Raspberry Pi Zero v1.3 : ID 3298 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits](https://cdn-shop.adafruit.com/970x728/3298-00.jpg)
Zero4U - 4 Port USB Hub for Raspberry Pi Zero v1.3 : ID 3298 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
![Arducam 16MP Pi Camera 4K, IMX298 for Raspberry Pi Camera, MIPI Camera Module, Plugged into Native MIPI CSI-2 Port on Raspberry Pi Arducam 16MP Pi Camera 4K, IMX298 for Raspberry Pi Camera, MIPI Camera Module, Plugged into Native MIPI CSI-2 Port on Raspberry Pi](https://www.uctronics.com/media/catalog/product/cache/3fc89061b2edaf80fd04bd2337c00b73/b/0/b0174_1.jpg)
Arducam 16MP Pi Camera 4K, IMX298 for Raspberry Pi Camera, MIPI Camera Module, Plugged into Native MIPI CSI-2 Port on Raspberry Pi
![Activate the TTL serial port of the Raspberry Pi and verify that it is working. – Howto Raspberry Pi Activate the TTL serial port of the Raspberry Pi and verify that it is working. – Howto Raspberry Pi](https://raspberry-pi.fr/wp-content/uploads/2020/07/gpios-diagram-939x528.png)
Activate the TTL serial port of the Raspberry Pi and verify that it is working. – Howto Raspberry Pi
![I2C Shield for Raspberry Pi 4, Pi 3, & Pi 2 with Outward Facing I2C Port Terminates over HDMI Port - store.ncd.io I2C Shield for Raspberry Pi 4, Pi 3, & Pi 2 with Outward Facing I2C Port Terminates over HDMI Port - store.ncd.io](https://media.ncd.io/sites/2/20170721151532/TOUTPI2_C_2.png)
I2C Shield for Raspberry Pi 4, Pi 3, & Pi 2 with Outward Facing I2C Port Terminates over HDMI Port - store.ncd.io
![Appendix B. Raspberry Pi ports and legacy boards - Hello Raspberry Pi!: Python programming for kids and other beginners Appendix B. Raspberry Pi ports and legacy boards - Hello Raspberry Pi!: Python programming for kids and other beginners](https://drek4537l1klr.cloudfront.net/heitz/Figures/b0fig01_alt.jpg)