What's all that Junk on SD Cards???

13,407
0
Published 2024-07-09
In today's episode, we take a look at SD cards. More specifically, what is all that junk all over them?? Join me, on Alex's Tech Corner.

Let me know what you think of this format down below.

0:00 - Introduction
0:23 - Shape
1:26 - Capacity
3:14 - UHS (I)
4:44 - Speed Class (C)
6:02 - UHS Speed Class (U)
7:23 - Video Speed Class (V)
10:30 - Searching for the Best SD Card
11:51 - MicroSD Cards
12:57 - Application Performance Class




"Understanding SD Card Symbols"
"SD Card Symbols Explained"
"Guide to SD Card Symbols"
"Best SD Cards to Buy"
"Choosing the Right SD Card"
"SD Card Shape Explained"
"Different Types of SD Cards"
"SD Card Buying Guide"
"How to Choose an SD Card"
"SD Card Tips and Tricks"
"SD Card Speed Classes"
"SD Card Video Speed Class"
"SD Card Capacity Explained"
"MicroSD vs SD Card"
"UHS Speed Class"
"Best SD Card for Cameras"
"Best SD Card for Video"
"SD Card for Gaming"
"SD Card Guide 2024"
"Top SD Cards for 2024"
"SD Card Ratings Explained"
"Fastest SD Cards"
"SD Card Compatibility Guide"
"Choosing an SD Card for 4K Video"
"Understanding SD Card Sizes"
"SD Card Form Factors"
"SD Card Performance Tips"
"SD Card Durability"
"Top Rated SD Cards"
"How to Read SD Card Labels"
"SD Card Formatting Guide"
"Optimal SD Card for Smartphones"
"SD Card Longevity Tips"
"SD Card for Drones"
"Best Budget SD Cards"
"SD Card for Raspberry Pi"
"Maximizing SD Card Performance"
"SD Card Buying Tips"
"High Capacity SD Cards"
"Secure Digital Card Guide"
"Affordable SD Cards"
"SD Card Maintenance Tips"

All Comments (21)
  • bro can barely work his ipad but knows all about SD cards? 10/10
  • Couple of bits to expand on this excellent vid: 😇 🔒 The lock switch at 00:58 is like the write protect tab on audio and video cassettes. It indicates to the reader (cassette deck) that the card shouldn't be written to, but will only work in practice if the reader actually honours what the switch indicates. Many cheaper readers don't detect the switch at all and treat all cards as being read/write. 🏃 The extra contacts on the UHS-II card at 04:15 support a differential pair data connection (Think SATA-III or USB 3,1) with the host device, and will typically be used by higher-end cameras and professional-oriented card readers - UHS-II cards are intended to serve in a similar way to HDDs or SSDs. All data on a UHS-II card can still be accessed by a regular SDXC compatible reader without the extra data pairs, but data transfer will of course be slower than in your [BigBrand] DSLR. Being a bit of a data monkey I've got SD*C cards spanning pretty much the entire history of the standard up to SDXC, including some that are so old they're original Class 1 (Max. 1MB/s, never labelled) cards. These really don't work well in modern applications (That's only to be expected!) but experience shows a Class 2 card from 2006 (With SLC flash) can hold data for longer than a modern SDHC card that uses TLC flash, meaning they're still relevant for high latency long lifetime applications and are especially useful in stereos with an SD card slot. 🎶 The various symbols for indicating the exact same thing (Minimum write speed) have come about simply because the original Class symbol doesn't scale up well to todays transfer rates (You could make a C90 logo, but imagine the C1500 needed for tomorrows 1.5GB/s rates) and the SD Card Forum have basically been throwing ideas at the wall and seeing what sticks. Manufacturers also like to have more symbols to put on their product because it means newer product will seem improved and more advanced compared to what the customer already has, even though the Class 10 micro-SD I've had in one of my phones for over a decade performs just as well today as a brand new Class 10/UHS-1/v30 card would. 😉 But aye, I've learned a few new things from this video! I didn't know that SDUC and UHS-III were on the horizon, and thanks for helping me finally understand what A1 and A2 mean on micro-SDs! No more trying-and-hoping when it comes to expanding my Android device storage with SD cards from now on
  • @frostlynn
    I just realized this channel only has 150 subscribers. The video quality and content are amazing! Keep doing what you do; I hope this channel becomes big someday!
  • considering the video quality i was shocked to see so few likes and views on it, nice video.
  • @selm1313
    i really like your casual style with keeping the "blooper" parts in, it makes it feel more casual and natural compared to mainstream stuff. keep up the good work!
  • @lukeumhoefer
    The audible "what the f**k" i let out learning about SDUC... 128TB is insane
  • @cakedisbad
    Finally a video that I actually learn from! Youtube recommended on fire! Awesome quality from a smaller youtuber. Keep up the good work.
  • @venomsnake256
    HOLY SHIT THE VIDEO QUALITY IS SO GOOD keep up the good work man!
  • @sleepysonic
    hahaha I LOVE how confidently you wrote that "4" down and your brain betrayed you. 🤣 subscribed.
  • @U9DATE
    You are one of the only exceptions to YouTube’s awful new algorithm. Recommend videos with no views of completely unrelated videos I don’t have an interest in of some random kid filming nothing
  • @tasherratt
    There is no U2? On this Beautiful Day, that would be Bad! I'll Exit the comments now before I Fall Down.
  • @The_T-Bone
    Can you do more video game videos, on like classic games and consoles?
  • @rpnorris
    I usually don’t like tech videos but this one is pretty cool. I can’t wait to see what this small YouTuber will do in the future!
  • Thanks for that helpful explanation. I'm saving this to a playlist to reference later.
  • @xakh
    You actually covered Application class! No one ever covers those. I use SDs as storage for a lot of embedded stuff and finding good A2 cards is always a pain lol.
  • @damer3016
    this is a well made video ngl, i was really looking for a vid to watch while i snack and this is perfect
  • @Deraco1
    As soon as you showed the wiki chart, i think the reasoning of the "duplication" is since the newer classes have higher "minimum" speeds, they have to still print on the older classes as the cards can still negotiate at lower mimium speeds for that older class. It's all about backwards compatibility and labeling such of what the SD driver chip can actually support