Top Rated MicroSD Cards for Your Dash Cam

Choosing the right memory card is crucial for the overall performance of your dash cam. Every brand and model is different. We’re here to help you choose the right memory card for your dash cam. Here are some of the things you need to look for.

1 Memory Capacity

Perhaps the first thing to look for is the size of the memory card. The size will determine the number of hours your memory card will hold before your dash cam overwrites your files. We recommend cards that are 16gb to 128gb.


The amount of hours a memory can hold will largely be determined by each video’s bitrate. Typically higher bitrate will mean a higher quality video. And the higher the bitrate, the larger the file. By factoring in the bitrate and size of each file, you can determine how many hours your memory card can hold before it overwrites. For a more in-depth explanation on bit-rates please visit the What is Bit Rate article.

A typical dash cam can generally hold 2-20+ hours of footage before overwriting. If your camera is a dual channel, this number might be less.


2 Speed and Rating

Speed and rating play an integral role when transferring, reading, and writing data. It is recommended that your memory card is at least Class 10 and UHS-I.


UHS Speed

UHS stands for “ultra high speed”. UHS was designed to support devices that call for higher capacity and speed requirements. USH speed is apparent when shooting high-resolution videos and large RAW image formats. There are currently 3 versions of USH: UHS-I, UHS-II, and UHS-III. UHS-I is sufficient for dash cam purposes.

Class Rating

Class rating is determined by the minimum speed you need to guarantee that the video being captured is recorded at a consistent and sustained rate with no loss of data. This minimum is based on a worst case scenario test. We recommend purchasing memory cards that have a class rating of 10.


3 NAND Types

NAND type describes the internal architecture and the way data is stored in the memory cells. There are 2 common NAND types: MLC and TLC. The 2 types serve different purposes for different applications. For writing intensive applications, MLC is recommended because it is more durable and reliable.


Multi Level Cell stores multi bits of data on one cell. The read/write life cycle is considerably higher, making MLC type memory cards more durable and reliable.


Triple Level Cell stores 3 bits of data per cell. The read/write life cycle of TLC flash is considerably shorter, which makes it less than ideal for dash cam usage. However, on average TLC memory cards are cheaper.

NOTE: Specs for NAND type may not be readily available. Please contact the manufacturer for more information.

4 Warranty

Warranty can be an important factor when choosing what brand or model to go with. Some models do not provide warranty under dash cam usage, while others do. In general, most endurance models will typically have warranties that support write-intensive applications such as video surveillance or dash cams. These warranties are a good indicator of how well a memory card will perform with your dash cam.

5 Memory Cards we recommend

Don’t sweat it! We did the homework for you. Here are several readily available memory cards you can find online or at your local retailer. We highly recommend using one of the cards below for optimal performance, consistency and compatibility.



SanDisk High Endurance

10,000 Hours Lifetime (Based on 32gb)

Read: up to 20 MB/s with UHS-1 interface
Write: up to 20 MB/s with UHS-1 interface
32 GB, 64 GB


Transcend Premium 400x (Budget Friendly)

10,000 Lifetime Hours (Based on 32gb)

Read: up to 60 MB/s with UHS-1 interface
Write: up to 25 MB/s with UHS-1 interface
16 GB, 32 GB, 64 GB, 128 GB


Transcend High Endurance

10,000 Lifetime Hours (Based on 32gb)

Read: up to 95MB/s with UHS-1 interface
Write: up to 60MB/s with UHS-1 interface
16 GB, 32 GB, 64 GB, 128 GB


Samsung Pro Endurance (Best)

17,520 Lifetime Hours (Based on 32gb)

Read: up to 100MB/s with UHS-1 interface
Write: up to 30MB/s with UHS-1 interface
32 GB, 64 GB, 128 GB

How to Test for Fake Memory Cards

The online marketplaces is often littered with counterfeit products. Unsuspecting buyers are often unaware that their memory cards are fake and do not match the advertised performance. Some manufacturers have become aware of this and have authentication services that help you authenticate your memory card.

If the manufacturer does not a means of authentication, use this guide. Avoid purchasing fake memory cards by purchasing from reputable sellers and avoid purchases from Ebay, Aliexpress and even third-party sellers on Amazon.