Talk:MicroSD

message: I believe the different class the micro sdhc cards are divided up into are how fast they transfer/load. I'm not too sure as I've forgotten but I believe its somewhere along those lines. The higher the class the faster I think. Correct this post or add it as I might be mistaken.66.41.233.4 (talk) 23:56, 31 August 2010 (UTC)
thread_title: class type

message: Removed A1010 from list of Supported Devices, as it has been canned. Admiral Trigger Happy 03:22, 17 March 2006 (UTC)
thread_title: Removed

message: It's so small! One question, does the name TransFlash always mean microSD, or is it a technology available to any flash card maker? [[User:J
I think its a mistake, but its generally difficult to prove the nonexistence of something. M0nkey 15:28, 4 June 2006 (UTC)
thread_title: TransFlash

message: Edited article to correct the error.
I have a 2 gig micro sd card in my Verizon LG VX8300 right now.  I'm listening to the one of my 389 songs as I type this.
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It exist:
"Card capacity up to 2GB"
http://www.kingmaxdigi.com/product/MicroSD.htm
84.57.148.173 12:11, 18 October 2006 (UTC)
thread_title:  No 2GB microSD 

message: No information if it is possible to use micro SD cards on devices with mini SD slots.
:This is true. Likely this is because there is no information anywhere on that. — Saxifrage ✎ 22:07, 26 September 2006 (UTC)
replies: text: Do remeber that the Olympus adapter only makes up the pins from the camera to the microsd.  This works because Olympus cameras now have SD access logically on the firmware, so that only the passive adapter is needed. 66.114.93.6 (talk) 19:13, 4 January 2009 (UTC)
thread_title:  Micro SD -> Mini SD 

message: If I have a MicroSD card, how do I write stuff to it? The device that uses the MicroSD card doesn't interface with a computer.
:Most MicroSD cards come with an adaptor that looks like a normal SD or MMC card with a small slot in the top for the MicroSD card. Since the cards are technically the same apart from case size, it's just a connector adaptor. The adaptor can then be put into a normal SD/MMC card reader. If you didn't get one with your card, I don't know what to suggest. I suppose complain to whoever you got the card from, or see if your local electronics store sells the adaptor (it shouldn't be expensive: it's just some plastic and a few wires). — Saxifrage ✎ 22:06, 26 September 2006 (UTC)
replies: text: At Spain exist a microSD / miniSD USB dongle adapter (only one model for dongle). At Auchan /Alcampo Hipermarket have a price of 9 € --Museo8bits 09:20, 24 December 2006 (UTC)
replies: text: The best way is with a SanDisk/MicroSD converter (where the MicroSD fits into a SanDisk type casing), and subsequently functions as one.  Once the MicroSD is in place, there's no difference. Here's an image of one  (I ignore the MiniSD component which is also shown entirely, as well as the "phone" jargon sticker, since this works on anything that takes a SanDisk): You just slide the MicroSD into the SanDisk casing (usually there's a lock on the side so it doesn't slide out) and you're done! Other products that take MicroSD cards, such as cell phones, etc probably work too.  I hope this helps! jeff (talk) 16:13, 2 May 2008 (UTC)
thread_title:  Computer Interface? 

message: Are there several standard voltages for microSD ? Some people talk about it, but I can't find anything with google, just a single voltage of 3.3V. Some manufacturers state 2.7V-3.6V.
xerces8, --195.3.81.25 13:48, 9 January 2007 (UTC)
replies: text: You're thinking of RS-MMC/DV-MMC, which has two voltages. Wibbble 19:47, 9 January 2007 (UTC)
replies: text: No I´m a not ;-) --Xerces8 10:01, 24 January 2007 (UTC)
thread_title:  Voltage 

message: Can someone give definitive info on if devices which support microSD will also support microSDHC automatically? or are microSDHC like SDHC, your device needs explicit support of the interface? --Auroragb 18:22, 15 August 2007 (UTC)
replies: text: Most products I've encountered are compatible, provided they're less than a year or two old (SDHC = SanDisk High Capacity in case anyone was wondering). If it's not too expensive, I suppose anything's worth a try! jeff (talk) 16:19, 2 May 2008 (UTC)
thread_title:  microSD vs microSDHC 

message: Is microSD compatible with Memory Stick PRO Duo, and is there an adapter?209.91.61.223 08:57, 29 September 2007 (UTC)
thread_title: Adapter?

message: This is my first contrib to wikipedia, but I noticed that note 2 in the body of the article is listed as note 5 at the bottom (there are only two footnotes).  Also the URL it goes to is to a commercial site, and doesn't mention the device it claims to footnote, so does that make it just bogus? 65.78.24.232 (talk) 12:39, 12 December 2007 (UTC)
thread_title: note 2 is note 5

message: This article states that the maximum capacity of a MicroSD is 4 GB where it, in the SHDC article, states that SHDC is the first card to go over 2 GB. Does any one know which one is correct? I think it's the SHDC one since i haven't been able to locate a MicroSD card with more than 2 GB. EZtaR (talk) 00:57, 9 January 2008 (UTC)
thread_title:  This article and the SHDC article conflict 

message: The Phonescoop link cited to back up the assertion that MicroSD cards support NFC appears poorly worded. What I think they mean is "MicroSD cards can also operate in SDIO mode, like full-size SD cards. This enables non-memory cards to be created, like wifi, bluetooth, GPS, or NFC."
Two problems with the way it's worded now: First, nobody's built a MicroSDIO NFC card. Second, nobody asserts that TransFlash does not support SDIO. I'm changing it, pending some clear evidence to the contrary. 68.43.149.99 (talk) 20:43, 16 April 2008 (UTC)
thread_title:  NFC claim dubious 

message: Performance (read and write speed) of microSD devices is a jungle. Most cards does not specify. I have found that in practive there may be significant differences. This area needs to be covered by someone who is not as confused as myself. -- Egil (talk) 12:21, 2 September 2008 (UTC)
thread_title:  Performance 

message: Currently, the article says "As of August 2008, microSD cards are available in capacities from 64 MB to 8 GB.[citation needed] A 12 GB version is being developed by SanDisk.[citation needed] Cards 4 GB and larger are only available in the newer SDHC format." So There's an 8 GB microSD ard available, but cards 4 GB and larger are only available in SDHC format? Er... Which is it? Somebody pick one, please?  —Preceding unsigned comment added by 70.130.204.175 (talk) 13:43, 22 September 2008 (UTC)
thread_title:  microSD & SDHC 

message: I've noticed that the devices list is getting ridiculous. Is it not sufficient to say that it is pretty much the standard for most phones released? Not to mention the other types of device that use it. It seems impossible to create a complete list like this and I think it should be completely removed, and replaced with some text saying how widespread it's use is. ColinCameron (talk) 18:09, 26 November 2008 (UTC)
thread_title:  Devices list 

message: intro section mentions 16GB as max capacity, while the reference clearly states the new 16GB is microSDHC, not microSD.  Apparently the confusion spread to the article itself, if I understand things correctly.  The largest microSD card at present is 2GB, can anyone confirm?
74.69.119.32 (talk) 04:12, 26 December 2008 (UTC)
thread_title:  max capacity 

message: what does it mean? any memory medium can store any data, be it open source or closed source. so what does the field 'open source compatible' in the comparison table mean?
Perryizgr8 (talk) 17:25, 23 May 2009 (UTC)
replies: text: It's not about content (storing software on the drives) but access drivers. MMC has been in Linux kernel for ages, SD readout capabilities are recently new even though they were written a long time ago - but available only as 3rd party patches. It took many years till they made into the trunk. It's about proprietary specs covered by NDA. You are not allowed to release source code of a program implementing these specs. Of course if you never signed the NDA, it means you can reverse-engineer the protocol and write your own stack, getting the driver into kernel. But by doing so you put big companies that supporters of Linux (like IBM) in a very uncomfortable position: they DID sign the NDA to be able to use the device in their other products, and now if they release Linux, they are required (by GPL) to release the source code - and the source code contains the implementation of the stack (reverse-engineered but still compliant with the secret spec.) - so publishing it is in violation of the NDA, so they would have to remove the offending code from kernel prior to release.83.14.232.226 (talk) 14:18, 1 June 2009 (UTC)
thread_title:  open source compatible? 

message: The article says that "All memory cards must support all three modes [1 Bit, 4 Bit and SPI], except for microSD where SPI is optional." Though the tables in the miniSD card and microSD articles state that 4 Bit mode is optional for all form factors. Now what? --83.171.186.53 (talk) 10:00, 3 September 2009 (UTC)
thread_title:  4 Bit transfer mode optional or not? 

message: The article doesn't mention the "class" rating for, specifically, microSDHC.
I've see class 2, 4, and 6. I was hoping that wiki knew what it all means. Once I learn, I'll consider updating the article. Charles 11:20, 12 September 2009 (UTC)
replies: text: That would be great. I was looking for this information too. 94.222.221.115 (talk) 01:31, 23 June 2010 (UTC)
replies: text: I second that.  I can't find any info as to what it means, specifically compatibility-wise.  Darktangent (talk) 21:43, 23 September 2010 (UTC)
thread_title:  Classes 

message: "The SD and SDHC share a similar form factor, but not all devices are compatible with the newer high capacity format"
Surely they share identical form factor?  —Preceding unsigned comment added by 86.0.4.150 (talk) 21:09, 31 March 2010 (UTC)
thread_title:  use of the word similar 

message: "This is even true with devices that have been developed by SanDisk such as their e200 series of MP3 players. Using 3rd party firmware, however, SDHC reading capabilities can be possible.[3]"
I don't see why Sandisk should be highlighted here.  —Preceding unsigned comment added by 86.0.4.150 (talk) 21:13, 31 March 2010 (UTC)
thread_title:  Sandisk 

message: I'm new to this memory format and noticed that on some hardware (cameras) the stick "clicks in & out". But on other hardware (smartphones) the stick does "click in", but cannot be removed so easily. You have to use a tool (tweezers, or a very thin edged tool like a razor blade) to gently pry the card out. I would post this directly into the article, but I'm not sure if this is accurate, follows "best practices", etc. If anyone knows better, I would suggest updating the article. 76.195.44.57 (talk) 04:22, 22 June 2010 (UTC)
thread_title:  Removing Cards 

message: It is observed that the cards used in smartphones and tablets do get corrupted and become useless. The reasons and care to avoid corruption are not mentioned any where in the article on the memory cards. Some body mentions that the cards support 10000 cycles. How far are these indisputable?  — Preceding unsigned comment added by Sscharyulu (talk • contribs) 04:33, 13 March 2013 (UTC)
thread_title:  Failure of the Microsd cards