Sony G Series UHS-II, The Best SD Card With 299MB / s Write Speed

During this time, many flagship cameras began to support the UHS-II, making the various card camps together to push the UHS-II cards together into a Sony procession, as well as not having to release the normal SD card UHS-II. Is the G Series UHS-II that they dare to say that this is the fastest SD card in the world.

First of all, if anyone read the name of this card, the Sony G Series UHS-II SDXC 64GB U3 and there are words that do not understand more than 2 words, it is recommended to try to see the description of the symbol on the SD Card. What are the numbers on the memory card? Why newbies need to know Once understood, it will be easier to read this SD Card review.

The World’s Fastest SD Card

Sony G Series UHS-II SDXC card UHS-II that Sony dares to say is the fastest in the world because it has 300MB / s read speed and a write speed of up to 299MB / s. It is produced in 3 capacities, 32GB, 64GB, and 128GB. This card is not only good at hardware, but Sony also says that they have developed a new algorithm that prevents speed loss while writing data.

What is UHS-II?

UHS stands for Ultra High-Speed. If you speak in detail, it will be very long and simple. No headaches. The UHS-II card will support the write-reading speed that is higher than the original UHS-I. In the article attached earlier)

By way of observing which SD card is the UHS-II, the easiest is to see from the specification specified or observed from the rear terminal of the card.

Notice that the top of the UHS-II and UHS-I terminals are the same, so we can also use the UHS-II card for use with UHS-I compatible cameras (including other cameras that support SD Card) or Will take the UHS-I card to the UHS-II compatible camera. The speed will run at the highest level that the camera or card will accept.

Strong design

Sony designed the Sony G Series UHS-II SDXC card to withstand harsh conditions.

  • Waterproof, waterproof to IPX7 level
  • Temperature Resistant to withstand temperatures from -25 to 85 degrees Celsius
  • Shock-proof, shock-resistant, shock-proof, twist-through card. Tested to enter and exit the slot SD Card up to 10,000 times and tested to withstand falling from a height of 1.5 meters without damage.
  • X-ray proof protection to ensure that the data will not be damaged when passing the airport scanner.

Speed ​​Test
I tested using two popular programs: Crystal Disk Mark 5.2.2 (Windows) and Blackmagic Disk Speed ​​Test (macOS) through the same UHS-II Card Reader. Lexar LRWM04U-7000

The result is very high speed, running through 200MB / s, still, but notice that the result is different. That should be caused by many factors, both Program used Written data format Card reader and computer itself Some review offices that test cards seriously, such as Cameramemoryspeed From his test set, this card has a much higher speed.

If used with UHS-I card readers?

If the Sony G Series UHS-II SDXC is used with the UHS-I card reader, the speed obtained will be as high as the reader will accept, which the body I can try is about R: 85-90MB / s. W: 85 -90MB / s


Using a high-speed card can be very useful if your camera has large files or requires a lot of continuous shooting because it allows the camera to quickly clear the data from the buffer or even if you’re not the one who shot. Continuing the use of a high-speed card also allows fast data transfer to the computer, saving more time.
For that price it is quite high (it’s the fastest card in the world!), According to the high performance card style. 32GB $ 59.00 / 64GB $ 109.00 / 128GB $ 179.99

Sony SF-G128/T1 High Performance 128GB SDXC UHS-II Class 10 U3 Memory Card with Blazing Fast Read Speed up to 300MB/s


In UHS-II devices, up to 300MB/s transfer speed and up to 299MB/s write speed UHS-II Reader (MRW-S1) is needed to realize transfer speed 32GB, 64GB, 128GB capacity models for all your image and video needs For use with digital cameras and other devices utilizing SD memory cards Fast writing minimizes lag time for fast motion photos and videos, burst mode shooting.Usable Capacity:115.2 GB Especially good for 4K continuous shooting and burst shooting Speed/Class: UHS-II, Class 10, U3 Sony is pleased to introduce the world’s fastest series of UHS-II SD cards, raising the performance bar available to professional photographers and videographers. This new SF-G series of UHS-II cards is Sony’s new top of the line SD cards, with a blazing fast read speed of up to 300MB/s and an industry leading writing speed of up to 299MB/s. Used with mid-to-high end digital cameras, video camcorders and other devices that support UHS-II SD cards, the new SF-G series of UHS-II high performance SD cards, available in capacities up to 128GB, are rated for 4K video shooting, maximizing workflow efficiency whether transferring data or burst shooting and continuous shooting.

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