The SanDisk Ultra® II SD Cards
are much faster than conventional storage media when
transferring large files. They achieve a continuous write
speed of at least 9 MB per
second and a read speed of 10 MB per second.
They are ideal for the
special needs of professional digital photography,
since photos taken with high-value cameras
need a high speed storage medium
Ultra II SD Cards are also the best choice for storing programs
and data for
Pocket PCs and PDAs,
such as navigation software. They can significantly speed
up working with large files such as maps.
What are SD Cards?
The SD Card is now the
most popular memory card format.
It is a further development of the MultiMediaCard and has additional
functions such as data encryption and a write protect switch.
The SD Card (32 x 24 x 2.1 mm) has the same
footprint as the MultiMediaCard (1.4 mm height) but is 0.7 mm thicker and has 9 pins instead
of 7 and a theoretical data rate which is four times faster.
It 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 memory media is the size of a postage stamp and the cards are used
both in industrial applications and in consumer devices – especially as
a memory expansion for compact digital cameras or PDAs respectively
A PC Card
Adapter which was developed by altec allows MultiMediaCards
to be used in any PC Card Type II slot, such as that found
in nearly all notebook PCs and altec Flash
The SD High Capacity Cards Ultra II
with 4 and 8 GB
capacity are not downwards compatible to the
existing SD Cards. The
new SDHC memory media fits into standard SD Card
slots but applications as card
reader or digital cameras explicitly
need to be compatible with the cards.
Available versions (with Item number)
1 GB SanDisk SD Card
EOL – Last Time Buy: April 24,
altec Item no.: B24SD1024U2JC
SanDisk Item no.: SDSDH-1024-J
2 GB SanDisk SD Card
altec Item no.: B24SD2048U2JC
SanDisk Item no.: SDSDH-2048-J
4 GB SanDisk SDHC Card Ultra II
altec Item no.: B24SD4096U2JC
SanDisk Item no.: SDSDH-4096-J
8 GB SanDisk SDHC Card Ultra II
altec Item no.: B24SD8192U2JC
SanDisk Item no.: SDSDH-8192-J
The letter »B« added
in front of altecís item number
marks RoHS compliant products.
The letter »-J« at
the end of the SanDiskís item number indicates
bulk cards in Jewel Case.
above: SanDisk SD Card Ultra II
top right: SanDisk SDHC Card Ultra II