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# Best microSD Cards for Security Cameras (High Endurance Picks)

Published 18 Jul 2026 · Category: Buying Guide · Web: https://level-floor.bnr.la/blog/best-microsd-cards-security-cameras/

*Security cameras destroy ordinary microSD cards. Here's why high-endurance cards exist, which ones to buy on Amazon AU, and how to size a card for 24/7 or event recording.*

A security camera writes video continuously, all day, every day — thousands of times more write cycles than a phone or drone ever asks of a card. Standard microSD cards wear out and corrupt in months of 24/7 duty. High endurance cards use different flash and are rated for years of continuous recording; they cost only a few dollars more.

> **Note:** Links to Amazon on this page are affiliate links — if you buy through them, Tech2Have may earn a small commission at no extra cost to you. It helps keep our guides free. See our affiliate disclosure .


## Best overall — SanDisk High Endurance 128GB


The default recommendation for every Wi-Fi and PoE camera we sell: rated for tens of thousands of hours of continuous video, V30-rated for 4K, and cheap enough to fit one to every camera. 128GB holds roughly 1–2 weeks of continuous 1080p recording, or months of event-triggered clips.


## Step up — SanDisk Max Endurance


Same idea, roughly double the rated write life. Worth it for cameras that record continuously in 2K/4K, or anywhere swapping the card means a ladder.


## Also solid — Samsung PRO Endurance & Kingston High Endurance


If the SanDisk cards are out of stock or the Samsung is on special, both alternatives carry proper endurance ratings. Whatever you pick, the word Endurance on the label is the part that matters.


## Sizing guide


Event recording (battery cameras, doorbells): 64–128GB holds months of clips.
Continuous 1080p: ~12GB/day → 128GB ≈ 10 days before overwrite.
Continuous 2K/4K: go 256GB, or better, a hub/NVR with an HDD.


## Outgrowing microSD? Record to a hub instead


Reolink's Home Hubs and UniFi's Dream Router bundles record every camera to central storage — no per-camera cards, longer retention, and footage survives a stolen camera. All stocked here:

**Q: Can I use a normal microSD card in a security camera?**

A: It will work — for a while. Continuous recording wears standard cards out in months, usually failing as corrupted or missing footage right when you need it. High-endurance cards exist precisely for this workload.

**Q: What size card does a Reolink camera take?**

A: Current Reolink cameras accept up to 256GB (some up to 512GB) microSD. Check the spec on the product page — every Reolink camera we stock lists its maximum card size.

**Q: Do cards need formatting in the camera?**

A: Yes — always format the card in the camera (or its app) on first install. It aligns the filesystem the way the firmware expects and surfaces a faulty card on day one.

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