Does a Dash Cam Need a Memory Card?
2 Answers
If the dash cam requires an external memory card, then a memory card is necessary; however, if the dash cam has built-in memory, it can be used without a memory card. This is because dash cams need storage space to save data, and if the device itself lacks internal memory, it relies on a memory card for storage. For such dash cams, a memory card is essential for operation. If no memory card is inserted, the dash cam will prompt the user to insert one upon startup before it can be used. A dash cam is a device that records video, audio, and other relevant information during vehicle operation. Once installed, it can capture the entire driving process, providing video and audio evidence in case of traffic accidents. Dash cam memory cards come in two types: SD cards or TF cards. Currently, SD cards used in dash cams are categorized into several performance classes, each meeting different usage requirements. Class 0: Also known as C0 cards, includes Class 2 and unlabeled Speed Class. Class 2 (C2 cards) is sufficient for watching standard MPEG4 movies and digital photography. Class 4 is typically the dedicated card for dash cams. Class 6 is generally suitable for DSLR photography, while Class 10 is ideal for those seeking perfect speed performance, meeting higher storage rate demands. From the above data, it's clear that Class 4 SD cards are standard for dash cams, though Class 10 can be used if conditions permit.
Absolutely need a memory card! I learned this the hard way. Last time I hit the road without inserting a card, and when someone cut me off aggressively, I tried to check the footage only to find nothing was recorded. Now I use a 128GB high-speed card that can store over ten hours of video—a V30-class card is sufficient. When choosing a card, opt for ones specifically designed for dash cams; they're heat-resistant and durable, unlike regular cards that fail under summer heat. Go for at least 64GB—32GB barely lasts half a day and can't handle loop recording. Oh, and remember to format it regularly, or you'll get a storage error at the worst moment (don't ask how I know).
