![Amazon.com: 4-Port Raspberry Pi USB HUB HAT for Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero/Zero W, 4 USB Ports Compatible with USB2.0/1.1 Onboard USB to UART Onboard Multi Indicators : Electronics Amazon.com: 4-Port Raspberry Pi USB HUB HAT for Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero/Zero W, 4 USB Ports Compatible with USB2.0/1.1 Onboard USB to UART Onboard Multi Indicators : Electronics](https://m.media-amazon.com/images/I/810wX3nR0aL.jpg)
Amazon.com: 4-Port Raspberry Pi USB HUB HAT for Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero/Zero W, 4 USB Ports Compatible with USB2.0/1.1 Onboard USB to UART Onboard Multi Indicators : Electronics
![Amazon.com: waveshare Power Over Ethernet (PoE) HAT for Raspberry Pi 4B/3B+, 802.3af/at PoE Network Standard, 5V USB-A&12V Header Outputs, PoE HAT Onboard Cooling Fan and MP8676 Buck Chip, Isolated : Electronics Amazon.com: waveshare Power Over Ethernet (PoE) HAT for Raspberry Pi 4B/3B+, 802.3af/at PoE Network Standard, 5V USB-A&12V Header Outputs, PoE HAT Onboard Cooling Fan and MP8676 Buck Chip, Isolated : Electronics](https://m.media-amazon.com/images/I/71SsxWu58hL.jpg)
Amazon.com: waveshare Power Over Ethernet (PoE) HAT for Raspberry Pi 4B/3B+, 802.3af/at PoE Network Standard, 5V USB-A&12V Header Outputs, PoE HAT Onboard Cooling Fan and MP8676 Buck Chip, Isolated : Electronics
![Amazon.com: Power Management HAT for Raspberry Pi 4B/3B+/3B/2B/B+/A+Zero/Zero W,with ATmega328P MCU for Ard Programming PCF8523 RTC Chip,UART + GPIO Communication Interface and User-Defined Button : Electronics Amazon.com: Power Management HAT for Raspberry Pi 4B/3B+/3B/2B/B+/A+Zero/Zero W,with ATmega328P MCU for Ard Programming PCF8523 RTC Chip,UART + GPIO Communication Interface and User-Defined Button : Electronics](https://m.media-amazon.com/images/I/61zTRCmE-aL.jpg)