How to choose the right SD card to record 4K video: best buying recommendations and 7 featured models for 2019

0 8

Nowadays, it is common to find cameras with various formats, camcorders, smartphones and drones capable of recording video recordings in 4K, an ambitious solution in terms of data transfer speed and storage requirements. If you are looking for an SD card for a device that captures 4K video, you need to know this.

What SD card to buy to capture video in 4K

The SD cards are a storage system that enjoys great popularity due to its features. It is a versatile storage, easy to use, durable, retro-compatible, compact, with large storage space and relatively cheap.

For simplicity, we use the term “SD cards” in the vernacular. There are several formats, types and classifications under this name. Considering the dimensions and the weight we find:

SD32x24x2,1 mm.2 g.
MINISD21.5x20x1.4 mm.0.8 g.
MICRO SD15x11x1 mm.0.25 g.

 

The microSD is the most common format today because of its versatility, as we can introduce it directly into smartphones or certain compact camera models, or use it with an adapter in SD slot devices. Before purchasing a card model, check its dimensions and whether an adapter is present.

Capacity, a matter of budget

As for the type of card, we essentially find three: SD, SDHC and SDXC, something that we can see at a glance on the surface of the card.

The difference between one and the other lies in the maximum capacity they can achieve , a key aspect for recording video in 4K. A) Yes:

Given the volume occupied by the 4K recording, we have to choose an SDXC card. Which capacity do you choose?

It depends on what our device and our budget allow, with 128GB being a good starting point.

By speed: the minimum UHS-I U1

The next thing will be to know the speed of the card, something that the manufacturer informs us through the Class or Speed ​​Class , a classification elaborated by the SD Association . This figure, which is usually surrounded, informs us of the minimum speed (in MB / s) of writing guaranteed by the card .

Below you can see a table with the classes that we find in the market:

CLASS 22 MB / s
CLASS 44 MB / s
CLASS 66 MB / s
CLASS 88 MB / s
CLASS 1010 MB / s

 

It is important to adhere to the classifications of the SD Association and not to the numerical speeds of reading and writing that the manufacturer puts into the packaging for a variety of reasons.

In order to start recording videos in 4K, it is important that the card achieve high write speeds and, in fact, we can find good models on the market with low reading speeds.

In addition, some models also inform us about the maximum read and write speed. Eye, because it is a temporary point that can reach the map, not a value that is permanently preserved. For the bus type used, the maximum speed of cards that only contain this classification is 25 MB / s.

However, when the SDHC and SDXC cards were introduced (with a new data transfer bus), the SD Association introduced a new class, the UHS Speed ​​Class, a reference you can find next on the card surface to the original speed class.

According to the UHS speed class, these are the minimum speeds we can expect:

  • UHS-I Class 1 (U1) : minimum speed of 10 MB / s
  • UHS-I Class 3 (U3) : minimum speed of 30 MB / s

At the theoretical maximum speeds, 50 MB / s are achieved in U1 and 104 MB / s in U3. Recently, the new Class 3 UHS-II cards have been launched, which are expected to achieve transfer rates of up to 312 MB / s, but are still rare in the market, especially in the microSD format.

With the growing importance of cameras and smartphones where 4K recording or application installation is common, SD Asocciation has added two additional variables to the specification, Application Performance Class and Video Speed Class:

  • Application Performance Class or ‘APC’, which refers to the appropriateness of a card to store application or application data. This class guarantees write and read speeds in random and sequential mode suitable for application execution.
  • Video Speed ​​Class , which tells us how appropriate a card is to record video at 4K, 8K or 360 degrees, as well as the possibility of allowing the simultaneous recording of several files. It is represented on the surface of the cards with symbols ranging from V6 to V90, where the speeds correspond to 6 MB / s of the V6 at 90 MB / s of the V90, which is recommended for 8K video.

How to choose the right SD card to record 4K video: best buying recommendations and 7 featured models for 2019

This table provided by the SD Association is clear: If we want an SD card to record 4K video, at least one Class 10 UHS-I U1 model with the V10 video speed class must be used.

However, if the device in question is a camera, we recommend that you also use memory systems other than SD, for example: Compact Flash cards or XQD cards, which are expected to be used for video recording due to their higher transfer speed.

Featured models

With its clear typology, capabilities and classifications, the market needs to be searched for models that fit these characteristics and fit into our device as well as our budget.

As we saw in the previous point, the class 10 UHS-I U1 cards with a V10 of 128 GB will serve as the starting point. However, it pays off to look for models and brands that allow us to go one step higher for a slightly higher investment.

How to choose the right SD card to record 4K video: best buying recommendations and 7 featured models for 2019Toshiba Exceria

CAPACITY128 GBCLASSUHS-I U3 V30
VEL.MAX R / W98/65 MB / sPRICECheck it in Amazon

 

How to choose the right SD card to record 4K video: best buying recommendations and 7 featured models for 2019

Sandisk Extreme

CAPACITY128 GBCLASSUHS-I U3 V30
VEL.MAX R / W160/90 MB / sPRICECheck it in Amazon

 

How to choose the right SD card to record 4K video: best buying recommendations and 7 featured models for 2019

Sandisk Extreme Pro

CAPACITY128 GBCLASSUHS-I U3 V30
VEL.MAX R / W170/90 MB / sPRICECheck it in Amazon

 

How to choose the right SD card to record 4K video: best buying recommendations and 7 featured models for 2019

PNY Elite Performance

CAPACITY128 GBCLASSUHS-I U3
VEL.MAX R / W90/100 MB / sPRICECheck it in Amazon

 

How to choose the right SD card to record 4K video: best buying recommendations and 7 featured models for 2019

SanDisk Extreme PLUS

CAPACITY128 GBCLASSUHS-I U3 V30
VEL.MAX R / W170/90 MB / sPRICECheck it in Amazon

 

How to choose the right SD card to record 4K video: best buying recommendations and 7 featured models for 2019

Samsung EVO Plus

CAPACITY256 GBCLASSUHS-I U3 V30
VEL.MAX R / W95/90 MB / sPRICECheck it in Amazon

 

How to choose the right SD card to record 4K video: best buying recommendations and 7 featured models for 2019

Lexar Professional x1000

CAPACITY128 GBCLASSUHS-II U3 ​​V60
VEL.MAX R / W150/90 MB / sPRICECheck it in Amazon

 

 

 

 

Leave A Reply

Your email address will not be published.

12 − 7 =

This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. AcceptRead More