I compared the performance of the card reader 'SanDisk Professional PRO-READER SD and microSD' that can draw out the performance of the ultra-high speed SD card by 100% with the card reader built into the notebook PC
The file sizes of photos and movies that can be taken with digital cameras are increasing year by year, increasing the need for high-capacity and high-speed memory cards. However, even if you prepare a high-speed memory card, it is likely that you will not be able to work at the speed you want if the performance of the card reader is low. ' SanDisk Professional PRO-READER SD and microSD ', which appeared from the long-established storage brand SanDisk, can fully draw out the performance of high-speed SD cards and microSD cards, so prepare a super high-speed SD card. , I compared the reading performance with the built-in SD card reader of the notebook PC used in the editorial department.
SanDisk Professional PRO-READER SD and microSD™ | Western Digital
Appearance check of SanDisk Professional PRO-READER SD and microSD
The package of 'SanDisk Professional PRO-READER SD and microSD' looks like this.
Inside the box was the 'SanDisk Professional PRO-READER SD and microSD' main body, USB Type-C cable, and explanatory documents.
The exterior of 'SanDisk Professional PRO-READER SD and microSD' is made of aluminum and is cool to the touch.
Four rubber pads were attached to the back.
The front has a microSD card slot and an SD card slot.
When you insert a memory card into both slots, it looks like this. The microSD card can be inserted all the way, but the SD card protrudes by about a third.
Looking from the side, it looks like this.
The back has a write lock switch and a USB Type-C port.
The SanDisk logo is printed on the side.
Various certification marks were printed on the other side.
The dimensions of the main body are 115.3 mm in length × 60 mm in width × 19.05 mm in height, and the actual weight is 111 g.
◆ SanDisk Professional PRO-READER SD and microSD read performance check
In order to verify the read performance of 'SanDisk Professional PRO-READER SD and microSD', '
Let's compare the reading performance by inserting the above three types of memory cards into the built-in SD card reader of the notebook PC '
The execution result of the standard benchmark software '
・SanDisk 1TB Extreme PRO SDXC (maximum read speed 200M/s)
When inserted into 'SanDisk Professional PRO-READER SD and microSD' (left), it recorded a speed close to the maximum read speed of 189.59 MB / s, but the read speed is half with the built-in SD card reader of the notebook PC (right) It dropped to 89.73MB/s nearby.
・SanDisk 256GB Extreme PLUS SDXC (maximum read speed 190MB/s)
The read speed with 'SanDisk Professional PRO-READER SD and microSD' (left) is 186.12 MB / s, and the read speed with the built-in SD card reader (right) is 90.05 MB / s. 'SanDisk Professional PRO-READER SD and microSD' can draw out the speed according to the specifications of the SD card, but the built-in SD card reader can only demonstrate less than half the performance.
・SanDisk 1TB Extreme microSDXC (maximum read speed 190MB / s)
The notebook PC used for comparison does not have a microSD card slot, so I inserted it through the conversion adapter that came with the card. The measurement result is 184.96 MB / s for 'SanDisk Professional PRO-READER SD and microSD' (left) and 89.41 MB / s for the built-in SD card reader (right). 'SanDisk Professional PRO-READER SD and microSD' was able to bring out the performance according to the specifications in the same way with microSD.
Next, in order to verify the file transfer speed in the actual usage environment, save a 16.5 GB folder containing 2788 photos in 'SanDisk 1TB Extreme PRO SDXC' and use 'SanDisk Professional PRO-READER SD and microSD' and the built-in SD card reader, and measured the time it takes to copy data to the PC.
The measurement result is 106.74 seconds for 'SanDisk Professional PRO-READER SD and microSD' and 209.87 seconds for the built-in SD card reader. 'SanDisk Professional PRO-READER SD and microSD' was able to finish copying in half the time of the built-in SD card reader. Checking the transition of the data transfer speed during copying, the built-in SD card reader (right) is only about half the maximum read speed of the SD card (200MB/s) of about 80MB/s, but 'SanDisk Professional PRO-READER SD and microSD' (left) was able to transfer data at a speed close to the maximum read speed of around 160 MB / s.
As mentioned above, when using a high-speed memory card, the card reader built into the PC or an external card reader with low performance may not be able to bring out the full performance of the memory card. In recent years, it has become possible to easily shoot large-capacity movies with smartphones and action cameras, so there are many opportunities to save large-capacity data on memory cards. There must be many people who have experienced feeling that it is slow. 'SanDisk Professional PRO-READER SD and microSD' Highly recommended if you want to bring out the original performance of SD cards and microSD cards.
'SanDisk Professional PRO-READER SD and microSD' is available at Amazon.co.jp at 9339 yen including tax (+ 2499 yen including shipping fee) at the time of article creation. Also, 'SanDisk 1TB Extreme PRO SDXC' used for performance verification is available at 58,374 yen including tax, and 'SanDisk 1TB Extreme microSDXC' is available at 25,637 yen including tax.
Amazon | SanDisk Professional PRO-READER SD and microSD QuickFlow compatible SDPR5A8-0000-GBAND | SanDisk Professional | External memory card reader mail order
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