4 days ago
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SanDisk High Endurance microSDXC retention card
ZDNET's cardinal takeaways
- SanDisk's High Endurance Video microSDXC Cards are connected merchantability for $53 for the 256GB version.
- They're the cleanable cards for continuous recording, and are accelerated capable to grip 4K video recording.
- They are much costly than regular microSD cards.
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On Valentine's Day, 2023, I got it into my caput to trial the semipermanent durability of microSD cards. This thought came to maine aft encountering failures successful a fewer Raspberry Pi projects that progressive penning ample amounts of information to retention cards implicit extended periods.
I had a fistful of SanDisk High Endurance microSDXC cards, specifically designed for dense usage successful dash cams, assemblage cams, and location information cameras, truthful I decided to enactment them to the test.
I grabbed 3 dash cams I had lying astir (yeah, that's the benignant of worldly I person lying astir my place), acceptable them up to constituent retired a model into my garden, connected them to artillery backups, and fto them roll.
And rotation they did. Day and night… spring, summer, autumn, winter… for 3 years.
SanDisk manufactures 2 lines of microSD cards specifically designed for intensive usage successful devices similar dash cams and information cameras: the High Endurance and Max Endurance cards. As the sanction suggests, the Max Endurance cards are the eventual choice, promising a staggering 120,000 hours -- astir 13 years! -- of continuous recording.
Testing those to their bounds was intelligibly retired of the question, arsenic I mightiness precise good beryllium a shade earlier those cards deterioration out. But the High Endurance cards, which the specs assertion are bully for up to 40,000 hours for the largest 512GB card, posed a overmuch much achievable challenge. And since endurance scales linearly, the 256GB cards I tested are rated for lone 20,000 hours.
After all, 20,000 hours is lone -- springiness maine a infinitesimal portion I scribble immoderate mathematics connected the backmost of a convenient envelope -- astir 2 and a 4th years.
So, my program was simple: tally the cards until they died. But here's the happening -- they didn't.
Also: I tested a solid-state powerfulness slope with 10,000mAh - it's held backmost by 1 evident flaw
The SanDisk High Endurance cards turned retired to beryllium beauteous impressive. They're rated Class 10, U3, and V30, meaning they tin grip 4K video and boast sequential work and constitute speeds of 100 MB/s and 40 MB/s, respectively. While velocity isn't the astir captious origin for looped video signaling successful cameras, it's inactive bully to cognize these cards unrecorded up to their claims.
These cards are besides built to past a lot. They're resistant to drops, h2o immersion, and adjacent X-rays. On apical of that, they're designed for utmost somesthesia swings, rated to grip -13°F (-25°C) to 185°F (85°C) adjacent during operation. Whether baking connected a car dashboard oregon mounted connected the broadside of a house, these cards tin instrumentality it.
This is connected apical of their precocious endurance, made imaginable by SanDisk's usage of high-quality 3D TLC (Triple-Level Cell) flash, which offers overmuch longer beingness (but slower read/write speeds) than the modular TLC flash utilized successful much mainstream retention cards.
Side note: Whenever I speech astir retention cards for cameras and notation that they're X-ray proof, idiosyncratic ever asks wherefore manufacturers marque specified an oddly circumstantial claim. The curiosity stems from the days of photographic film, which was susceptible to fogging oregon overexposure erstwhile passed done X-ray machines astatine airdrome security.
Also: Why I spot this 1TB microSD paper with each my nonrecreational footage - and that says a lot
Thankfully, modern retention media similar microSD cards are wholly unaffected by X-rays, truthful there's nary request to interest astir that anymore.
Anyway, the different day, I decided to propulsion the plug connected the experiment. I estimation the cards person tally for astir 26,500 hours, each of them surpassing the rated 20,000 hours.
How is that possible?
It turns retired this was owed to the cameras I used. While they were acceptable to grounds HD video, I hadn't accounted for their usage of adaptable spot complaint technology, which conserves retention abstraction astatine the disbursal of immoderate quality. Since my cameras were pointed astatine a plot with minimal question (especially astatine night), they recorded little information to support the aforesaid level of prime compared to if they had been capturing a engaged metropolis with changeless motion. As a result, little information was written to the cards.
Also: Most star powerfulness banks I've tested were gimmicks - this 1 is the existent deal
But still, these cards lasted 3 years of continuous use, penning an estimated 24 TB of information to that 256GB paper implicit that clip (another back-of-the-envelope calculation, assuming a debased spot complaint of astir 2 Mbps). That's awesome endurance, and blasting past the 2-year constricted warranty these cards travel with.
But successful reality, these cards could precise good person a fewer much years near successful them. I've tally tests connected these cards, and adjacent aft 3 years of use, show is precisely the aforesaid arsenic erstwhile they were new, and a scan of the cards doesn't amusement immoderate errors. Not atrocious for a microSD paper you tin bargain for $60.
ZDNET's buying advice
The SanDisk High Endurance scope of microSD cards gets 2 thumbs up from me. Even if you spell for the 512GB card, which boosts lifespan retired to 40,000 hours of HD video recording, that inactive lone costs a precise tenable $110.
If this isn't capable for you, spell for Max Endurance, wherever prices scope from $37 for a 32GB paper with a 15,000-hour HD signaling lifespan, to $99 for a 256GB paper offering the afloat 120,000 hours (13 years) of signaling lifespan.
Sure, you could propulsion a regular paper into your dash cam, assemblage cam, oregon information camera strategy and instrumentality a chance, but if 1 time you request that footage for thing and it's not determination due to the fact that your paper failed, don't blasted me.
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