Gadgetory

as ubiquitous as secure digital or SD cards are these days it wasn't too long ago that they weren't king of the hill if you want a digital camera back in the late 1990s or early 2000s because you're old like me you probably remember the confusing selection of memory cards that you had to choose from compact flash smart media memory stick so how is it then that SD ended up winning the format war well although SD was originally pushed by several different companies as a removable storage format that supported DRM for music hence the name secure digital everyone kind of forgot about that functionality soon after the cards hit the market and instead took note of they're much more convenient size compared to compact flash and they're greater storage potential compared to smart media SD also had the advantage of being a more open standard than memory stick which today is almost exclusively found on Sony devices or the XD picture card meaning that it became relatively cheap for companies to start including on their digital cameras computers and more portable things like GPS devices even though you could expect to pay about $200 for a 128 megabyte SD card when they first came out in 2001 prices quickly fell as the format was introduced into more and more gadgets so by the mid-2000s SD had clearly started to dominate the market but the unyielding demand for smaller higher capacity storage meant that the technology was still being pushed forward 2003 brought us the mini SD card followed by the much more widely adopted micro SD card in 2005 so thanks to decreases in the size of flash transistors that actually store the data and an increase in how many can be crammed onto one card we actually now have SD cards in capacities that were unthinkable less than two decades ago with both standard sized and micro SD cards now available that can hold over half a terabyte meaning at the highest capacity microSD card on the market right now can hold over 35,000 times as much data as a standard three and a half inch floppy while being over 50 times smaller physically unfortunately though these much higher capacities mean that not all SD cards will function properly in any slot that will physically fit them the original SD spec only supported up to two gigabytes while SDHC cards can hold up to 32 gigs and the newer SDXC can handle up to two terabytes although cards that spacious aren't on the market yet unlike standards like USB or SATA SD cards aren't backwards compatible with older readers that only support an older spec so SDXC cards won't work in that card reader from 2007 this matter made worse by the fact that it requires exFAT a newer file system that some older versions of Windows don't support natively newer readers though are usually fine with older cards so aside from standard SD versus the higher capacity versions you also need to pay attention though to the speed rating lower end models might have a number two four six inside a circle giving you an idea of the maximum write speed in megabytes per second while higher end cards are often classified as UHS 1 or UHS 2 indicating both higher bus speeds and write speeds with UHS two cards offering write speeds of at least 30 megabytes per second which is important if you're trying to do something demanding like record 4k video as the card needs to be able to support the high data rates to keep up so while there's still a lot to look for when shopping for flash memory at least the days when there were 6 or 7 different completely different physical formats vying for your attention are over just try not to drop your micro SD card between your couch cushions if you know what I mean was that it getting something stuck in your butt joke speaking of which Dollar Shave Club lets you get razors and other bathroom supplies shipped directly to your door for just a few bucks a month they've got their high quality simple no vibrating handles nothing like that just high-quality razor blades high-quality razors they're dr. 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