Samsung Unveils the Ultimate SD Card for Home Assistant

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Home automation is rapidly gaining popularity, with Home Assistant at the forefront as a comprehensive solution for managing all kinds of smart devices and services. Setting up a Home Assistant ecosystem on a Raspberry Pi can be challenging, especially for beginners. A crucial component in this setup is the microSD card, which houses the Home Assistant operating system and its numerous files. This article explores why choosing the right microSD card is essential and introduces Samsung's latest offering, the PRO Endurance Memory Card, known for its exceptional durability and performance.


The Importance of Choosing the Right microSD Card

For those new to Home Assistant, concerns about YAML should be secondary to the importance of selecting a robust microSD card for the Raspberry Pi running the application. As previously discussed in our guide, if you plan to use your Raspberry Pi extensively with Home Assistant, picking the right microSD card is crucial. Fortunately, Samsung has recently released a new series of microSD card that is highly recommended for any Raspberry Pi setup. Endurance microSD cards, like Samsung's PRO Endurance Memory Card, are specifically engineered for environments where data is frequently written and erased. These cards are not only recommended for Home Assistant setups on Raspberry Pi, but are also extensively used in CCTV cameras, which share a similar requirement for constant data writing.

Standard microSD cards are generally designed for intermittent use, such as storing photos or files, where data is not frequently overwritten. These cards use lower-quality flash memory and lack the robust wear-levelling algorithms necessary to evenly distribute write and erase cycles. Without this technology, certain areas of the card wear out quicker, leading to premature failure. As Home Assistant continuously reads and writes data, these high-frequency operations accelerate the wear process, causing standard microSD cards to fail within a short period.

Endurance-focused microSD cards, like Samsung's PRO Endurance Memory Card, are specifically engineered to withstand constant writing and erasing. These cards use higher-quality flash memory and advanced wear-levelling technologies, ensuring longevity and reliability even under demanding conditions. Investing in an endurance card mitigates the risk of data loss and system failure, providing a stable and long-lasting solution for Home Assistant setups.

The Tough Love Home Assistant Shows to microSD Cards

With Home Assistant consistently reading from and writing to the microSD card, a regular microSD card will fail quickly unless designed for continuous recording, like security cameras or dashcams. Enter endurance cards – the knight in shining armour for Raspberry Pis running Home Assistant. Samsung's latest PRO Endurance Memory Card is a game-changer, offering a staggering 16 years (140,160 hours) of continuous recording, leaving its competitors in the dust.

A significant contributor to the frequent writes in Home Assistant is the Recorder integration. The Recorder is responsible for saving a detailed history of events and states, allowing users to track changes and analyse past data. By default, it commits this data to the database at regular intervals, ensuring that all state changes and events are logged accurately.

While it might seem tempting to increase the commit_interval to reduce the frequency of writes and prolong the life of a microSD card, this approach is not recommended. Setting the commit_interval too high can lead to significant data loss in the event of a power failure or system crash, as changes would be stored in memory rather than being written to the database immediately. Therefore, balancing write frequency and data reliability is crucial, and using an endurance card ensures that the system remains reliable without compromising data integrity.

The Trade-offs

Sure, its read and write speeds of 100/40 MB/s may not be as lightning-fast as some microSD cards designed for high-speed operations, but they're unlikely to cause any issues in your system. If you're sticking with a Raspberry Pi, consider moving to an external SSD for even better performance. But if that's not feasible, Samsung's new PRO Endurance Memory Card will certainly meet your needs.


Choosing the right microSD card is crucial for a reliable Home Assistant setup on a Raspberry Pi. Samsung's PRO Endurance Memory Card stands out with its exceptional durability and performance, designed to handle the continuous read and write operations typical of Home Assistant. While it may not offer the fastest speeds, its longevity and reliability make it an excellent choice for ensuring a stable and long-lasting Home Assistant ecosystem.

A portrait photo oif Liam Alexander Colman, the author, creator, and owner of Home Assistant Guide wearing a suit.

About Liam Alexander Colman

is an experienced Home Assistant user who has been utilizing the platform for a variety of projects over an extended period. His journey began with a Raspberry Pi, which quickly grew to three Raspberry Pis and eventually a full-fledged server. Liam's current operating system of choice is Unraid, with Home Assistant comfortably running in a Docker container.
With a deep understanding of the intricacies of Home Assistant, Liam has an impressive setup, consisting of various Zigbee devices, and seamless integrations with existing products such as his Android TV box. For those interested in learning more about Liam's experience with Home Assistant, he shares his insights on how he first started using the platform and his subsequent journey.

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