While micro SD cards provide smartphones with storage space, SD cards are mostly found in single-lens reflex and system cameras or in laptops for expanding the memory.
Although there is usually a lot of storage capacity in them, they are not significantly larger than their micro version.
In general, the following applies:
Buying SD cards with more storage capacity
is
more
worthwhile in terms of price and storage capacity.
Maps also get a little faster with increasing storage space, but
good SD cards are of
high quality
even in smaller sizes
.
An SD card is good if it can store data very quickly.
Most cameras have a
data buffer to temporarily store photos
.
The faster the photos are moved from the buffer onto the card, the faster new recordings can be made.
Especially with high-resolution videos,
data
can
be lost
if the process of moving is too slow.
Of course, what also plays an important role is the
price
.
Especially fast cards are often more expensive because they have only just appeared on the market.
But even
cheaper SD cards
can master challenges such as 4K videos with their write and read quality.
How long an SD card can be used is of course
also decisive
for the
price-performance ratio
.
Transfer rates for SD cards: UHS-I, UHS-II and speed classes
In addition to the storage volume, transfer rates are of interest.
However, fast cards can only achieve their full potential with fast devices.
Most of the time, fast SD cards still work in slower devices.
The older transfer rate is “Normal / High Speed”.
The number in a circle on the card indicates the
“speed class” in MB / s (megabytes per second)
and shows how quickly data can be backed up.
They are available in grades 2, 4, 6 and 10. Current models usually have grade 10.
The newer transmission standard is
“Ultra High Speed” (“UHS”)
and is divided into
UHS-I to -III
.
There are hardly any compatible devices for UHS-III and UHS-II is particularly relevant for professional photographers.
The UHS cards come in three speed classes and, multiplied by 10, show the minimum write rate guaranteed by the manufacturer.
Usually it is even higher and SD cards with UHS are hardly more expensive, which is why the investment is really worthwhile.
SD cards in the test: the test winner
The test portal AllesBeste, in collaboration with the editorial team, took a
closer look at
29 copies
.
With the UHS-II standard, the editors recommend the
Lexar Professional 1667x128GB
.
Not only does it have a very fast read rate, which means that data can be quickly copied to a hard drive.
The card also runs at high writing speed and 8K videos can be recorded without any problems.
The manufacturer also guarantees a 10-year guarantee.
The
Kingston Canvas Select Plus 128 GB is
inexpensive
.
It is one of the UHS-I cards, but 4K videos can be easily recorded.
All SD cards are also available with other storage capacities, but the speeds differ slightly from the 128GB variant.
You can find more information and other recommended alternatives in the extensive review of AllesBeste.
These seven tips will save you a lot of money in everyday life
These seven tips will save you a lot of money in everyday life
