Flash memory cards like flash drives, flash memory cards or memory cards as they are fondly referred
to.
Also use Nand flash memory, which, as we previously learned, is a non-volatile solid state memory.
Unlike USB flash drives, however, these cards do not come with a USB interface and must be used with
either an adapter or memory card reader.
Over the years and decades, we've had several formats of memory cards graced our desktops, laptops,
mobiles and other devices, including cameras, MP3 players and even toys.
Although I'll only cover some of the more popular cards used today, it is important that you are at
least familiar with memory cards and are also able to identify them.
The flash memory card types we will look at are as follows.
Memory Stick Pro Duo Mspd Proprietary Card developed by Sony.
Secure Digital.
SD Secure Digital High Capacity Sdhc two.
232 GB capacity.
Many Sdhc Microsdhc Secure digital extended capacity Sdhc 32GB two TB capacity.
Compact flash cf Multimediacard.
Emmc.
Xd-picture XD.
Smartmedia.
Some of the aforementioned card types.
I've opted to show three from my collection in the following photo.
The card to the left is a Sony memory Stick pro duo.
The card in the middle is an SD card that has a sliding lock to the side used to prevent data from being
overwritten.
And the card to the right is the more common card of today, the micro SD.
I'd like to do a brief comparison of these three cards developed at least a decade apart.
The older Du card is larger with a capacity of two gigabytes, although not seen on the SD card.
Its capacity is four gigabytes and the smallest and newest car to the right.
Micro SD actually has a whopping 64GB of storage capacity.
Have a look at the following photo to see a close up of the micro SD card.
It shows the capacity of 64GB and also the class of the micro SD card class, 1060 four gigabytes of
data on something as small as a fingernail.
Still, micro SD cards are being developed with even larger capacities of 128GB and even 256GB.
The various classes of micro SD cards identify their reads, slash write speeds and suggested uses.
I do suggest getting a class ten C ten micro SD card.
If purchasing one as the C ten is much faster than the other classes two, four and six and supports
constant HD and even 4K video recording.
Classes two, four, six and ten support speeds of up to two MEPs, four MEPs, six MEPs and ten MEPs
respectively, and are known as SD Speed Class.
Class one and Class three are known as the HS speed class and support speeds of up to ten MEPs and 30
maps respectively.
The newer video speed class, which is recommended for HD video in 4K and 8-K, supports much faster
speeds.
The v ten v 30 v 60 and v 90 cards support speeds of up to ten minutes, 30 maps, 60 Mbps and 90 MEPs
respectively.
As mentioned earlier, flash memory cards require card readers which connect to laptops, desktops and
other media players using USB ports.
The following photo shows one of my many card readers which supports compact flash memory Stick, pro
duo, Secure Digital and even the Smartmedia cards.
I'd suggest getting yourself a few USB card readers that support the various card types to easily access
cards, whether for ordinary use or data recovery.
As most newer laptops, desktops and devices may only support SD card slots and USB interfaces here.