Complete Guide to Dash Cam microSD Card Recording Times
When shopping for a dash cam, one of the most important and often overlooked components is the microSD card. Your microSD card is where all of your video footage is stored, and understanding the relationship between microSD card size, bitrates, and the number of channels (1CH, 2CH, 3CH) is key to ensuring optimal recording performance and video retention.
In this comprehensive guide, we break down everything you need to know about dash cam microSD card sizes, bitrates, and how long each size can record, depending on your dash cam setup.
What is Bitrate and Why Does it Matter?
Bitrate refers to the amount of data recorded per second in your dash cam video. It is usually measured in megabits per second (Mbps). Higher bitrates mean better video quality but also larger file sizes, which consume more storage space on your SD card.
- Low Bitrate (8-12 Mbps): Lower quality but longer recording time.
- Medium Bitrate (12-16 Mbps): Balanced quality and storage.
- High Bitrate (16-24+ Mbps): Crisp video quality but shorter recording time.
For multi-channel dash cams (2CH and 3CH), the bitrate increases with each additional channel.
Frequently Asked Questions (FAQ)
Q: What happens when the microSD card is full?
A: Most dash cams overwrite the oldest footage automatically in a loop recording mode.
Q: Will a larger microSD card slow down my dash cam?
A: No, as long as it’s a high-endurance card with a fast write speed (U3, V30 or higher).
Q: How long do microSD cards last in dash cams?
A: Depending on the amount of use, a high-endurance microSD card should last between 2-3 years in a dash cam before it needs to be replaced.
Q: Should I reformat my microSD card regularly?
A: Yes, reformatting every 1-2 weeks helps prevent file corruption and extends card life.
Q: How do I know if/when my microSD card is faulty or needs replacing?
A: A classic sign of a faulty microSD card is when the Dash Cam gets stuck in a reboot cycle.
Q: Can I use any microSD card in my dash cam?
A: We always recommend choosing a micro SD card that is manufactured by the dash cam brand, however these can be more expensive. For an alternative, we recommend the Samsung Evo+ or Samsung Pro Plus microSD cards.
Final Thoughts
Choosing the right microSD card size and understanding how bitrates and channels affect recording time can make a huge difference in dash cam reliability. Whether you’re running a basic 1-channel front cam or a full 3-channel setup, optimizing your microSD card ensures you never miss a critical moment. Remember, always make sure to check a dash cams maximum SD card capacity, bit rate and which brand of SD card is recommended.
Stay safe, stay smart, and always keep your footage rolling.
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