A:Answer Yes, you need to purchase a separate SD card for your eufy Video Doorbell E340 as it does not include one. The maximum supported capacity is 128GB, which is sufficient for storing approximately 90 days of video history under typical usage (30 events per day, each 10 seconds long). You can use any micro-SD card that is Class 10 or above. The micro-SD card slot is located on the side of the WiFi doorbell chime for secure storage within your home.
