![Adafruit PiRTC - Precise DS3231 Real Time Clock for Raspberry Pi : ID 4282 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits Adafruit PiRTC - Precise DS3231 Real Time Clock for Raspberry Pi : ID 4282 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits](https://cdn-shop.adafruit.com/970x728/4282-08.jpg)
Adafruit PiRTC - Precise DS3231 Real Time Clock for Raspberry Pi : ID 4282 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
![Witty Pi 4 HAT - RTC & Power Management for Raspberry Pi : ID 5704 : $37.50 : Adafruit Industries, Unique & fun DIY electronics and kits Witty Pi 4 HAT - RTC & Power Management for Raspberry Pi : ID 5704 : $37.50 : Adafruit Industries, Unique & fun DIY electronics and kits](https://cdn-shop.adafruit.com/970x728/5704-00.jpg)
Witty Pi 4 HAT - RTC & Power Management for Raspberry Pi : ID 5704 : $37.50 : Adafruit Industries, Unique & fun DIY electronics and kits
![Amazon.com: for Raspberry Pi Compute Module 4,Mini Base Board (B) with Real-Time Clock and Raspberry Pi 40PIN GPIO Header, Onboard Multiple Connectors (CSI/DSI/RTC/FAN/HDMI/RJ45,etc) : Electronics Amazon.com: for Raspberry Pi Compute Module 4,Mini Base Board (B) with Real-Time Clock and Raspberry Pi 40PIN GPIO Header, Onboard Multiple Connectors (CSI/DSI/RTC/FAN/HDMI/RJ45,etc) : Electronics](https://m.media-amazon.com/images/I/71kPFqeWirS.jpg)