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The microSD is a highly miniaturized SD Card.
With dimensions of 11 x 15 x 1 mm, it is nearly 80%
smaller than an SD Card and is thus currently the smallest
available memory card.
The microSD replaces the TransFlash memory
card which was relesad by SanDisk nearly 3 years ago.
This memory
card, which only differs in the dimensions
of the contacts, is now an official memory card
standard of the SD Card
Association.
Compared to the TransFlash, the length and width of the
contacts has been reduced in order to be able to increase
the number of contacts (currently 8) in future versions.
The microSD card is 100% compatible to TransFlash and
to SD Card
or miniSD using
an appropriate adapter.
It is mainly used as a memory expansion
for mobile phones.
The microSD card uses the same flash technology as CompactFlash
and PC Cards, but the data
is transferred serially rather than the
parallel data transfer used by the ATA protocol.
The microSD High Capacity cards with
4, 6 and 8 GB capacity are not downwards compatible to
the existing microSD cards. The new microSDHC memory media fits
into standard microSD slots or adapters but applications
as card reader or mobile phones explicitly need to be compatible
with the cards.
above: SanDisk microSD with miniSD Adapter
right: SanDisk microSD with SD Card
and miniSD
Adapter in Jewel Case
top right: SanDisk microSDHC 8 GB |
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Available versions (with Item number)
128 MB SanDisk microSD
altec Item no.: B27SD128JC
SanDisk Item no.: SDSDQ-128-K
256 MB SanDisk microSD
altec Item no.: B27SD256JC
SanDisk Item no.: SDSDQ-256-K
512 MB SanDisk microSD
altec Item no.: B27SD512JC
SanDisk Item no.: SDSDQ-512-K
1 GB SanDisk microSD
altec Item no.: B27SD1024JC
SanDisk Item no.: SDSDQ-1024-K
2 GB SanDisk microSD
altec Item no.: B27SD2048JC
SanDisk Item no.: SDSDQ-2048-K
4 GB SanDisk microSDHC
altec Item no.: B27SD4096JC
SanDisk Item no.: SDSDQ-40968-K
6 GB SanDisk microSDHC
altec Item no.: B27SD6144JC
SanDisk Item no.: SDSDQ-6144-K
8 GB SanDisk microSDHC
altec Item no.: B27SD8192JC
SanDisk Item no.: SDSDQ-8192-K
The letter »B« added
in front of altec’s item number
marks RoHS compliant products.
The letter »-K« at
the end of the SanDisk’s item number indicates
bulk cards in Jewel Case and
with SD Card adapter.
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