3 Things You Should Know Before Buying A Memory Card For Security Cameras

Choosing the right memory card for constant video recording is like getting one for your digital camera, but there are a few key differences.

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Choosing the right memory card for constant video recording is like getting one for your digital camera, but there are a few key differences. Here’s how to pick the best one for you.

1. SD vs. SDHC vs. SDXC

Security cameras mostly use the smaller microSD memory card type, not the larger SD type. Besides size, the other card types you’ll need to know are SD, SDHC, and SDXC.

SDXC cards are made for high storage capacities, from 64GB to 2TB. Also, SDXC cards use the exFAT file system to store larger files. SD and SDHC cards, in comparison, have smaller capacities.

2. A smaller or larger capacity card?

When shooting video with digital cameras, it’s common practice to use smaller capacity memory cards. This forces the videographer to rotate cards, minimizing the chances of data loss if a card fails.

But that’s not practical with memory cards for security cameras, which are often left alone in a location. In comparison with digital cameras, surveillance cameras produce longer videos that loop. If storage runs out on a memory card, security cameras delete older footage to make space for new ones.

Because preserving as much footage as possible is key for surveillance, it’s better to get a larger capacity card for security cameras. But this brings us to another topic, which is write cycles.

3. Why endurance is key for video monitoring

Memory cards for video cameras usually emphasize write speeds, and for good reason. If the memory card’s write speed isn’t fast enough, the camera may stop recording at crucial moments, and footage will be lost.

But for surveillance cameras, a memory card’s endurance is as important as write speeds. Unlike digital cameras which record footage intermittently, security cameras record footage continuously. Security cameras also write over memory cards at a far higher rate than consumer video cameras.

The more write cycles a memory card goes through, the faster it’ll wear out. Memory cards that are optimized for constant writing will last longer and are more suitable for video monitoring.


If you’re looking for a reliable memory card for video monitoring, take a look at the Samsung PRO Endurance.

These SDHC and SDXC microSD memory cards are designed specifically for surveillance, security, dash, and body cams. They provide 25x longer continuous recording than speed-focused cards1 and can support both 4K and Full-HD recording.

With superior NAND technology, the PRO Endurance cards are optimized for constant recording. The cards can withstand significantly more write cycles, showing less wear in devices that continuously write and overwrite data2. The memory cards are also waterproof, temperature-proof, magnet-proof, and x-ray-proof, and can protect your footage in harsh conditions3.

1) Based on internal tests comparing different Samsung cards such as EVO Plus.

2) Up to 43,800 hours. Based on Full HD (1920x1080) video content recorded at 26 Mbps Video support.

3) Based on Samsung internal test results. Device durability are not industry standards and may vary depending on specific use, environment and usage method.

Find out more at http://www.samsung.com/memorycard