How much faster is the microSD Express card used in the Nintendo Switch 2 than conventional microSD cards? We measured the read and write speeds of a Nintendo-approved microSD Express card



The Nintendo Switch 2 , released on June 5, 2025, uses a microSD Express card as external storage. Compared to the microSD cards used in the previous generation Nintendo Switch, the microSD Express card has an extremely fast read/write speed, so we measured the read/write speed of the Nintendo-licensed product ' Samsung microSD Express Card 256GB for Nintendo Switch 2'. We will use the actual product that can be selected at the same time when purchasing the Switch 2 on the Nintendo official website.

Samsung microSD Express Card 256GB for Nintendo Switch 2 | My Nintendo Store
https://store-jp.nintendo.com/item/hardware-accessory/VM_BEE_A_SD01B

The packaging for the Samsung microSD Express Card 256GB for Nintendo Switch 2 features a large image of Mario.



The back of the package looks like this.

The speed class is 10, the video speed class is V30, and the application performance class is A1.



Use scissors to cut the package open.



I took out the Samsung microSD Express Card 256GB for Nintendo Switch 2. The exterior is red, and it has 'Samsung', Mario's 'M', the microSD Express logo, and '256' indicating the capacity.



Back side. There are more terminals than a regular microSD.



I compared the Samsung microSD Express Card 256GB for Nintendo Switch 2 (right) and the Samsung

microSDXC 512GB EVO Plus (left) that I used with the previous generation Nintendo Switch. There is no difference in shape or size.



The Samsung microSD Express Card 256GB for Nintendo Switch 2 clearly has more ports.



The Samsung microSD Express Card 256GB for Nintendo Switch 2 inserted into the microSD Express slot of the Nintendo Switch 2.



To actually test the read and write speeds of the Samsung microSD Express Card 256GB for Nintendo Switch 2, we borrowed SanDisk's card reader

, the PRO-READER SD Express Dual Card , which is compatible with SD Express.



The contents include an instruction manual, the PRO-READER SD Express Dual Card itself, and a USB-C cable.



Front side with microSD card slot and SD card slot



The PRO-READER SD Express Dual Card can be installed in SanDisk's

PRO-DOCK 4 , and the front frame could be removed as shown below.



The top surface looks like this. The exterior is made of aluminum, which is designed to dissipate heat.



There are four rubber feet on the bottom to prevent slipping.



The SanDisk logo was on the right side.



The product name and certification mark are printed on the left side.



On the back there is a write protection lock switch and a USB-C port for connectivity.



So, I inserted a microSDXC 512GB EVO Plus and a Samsung microSD Express Card 256GB for Nintendo Switch 2 into the PRO-READER SD Express Dual Card and measured the read and write speeds using

CrystalDiskMark .



The data size was set to 1GiB and the number of trials was set to 5, and the results are as follows. First, the read and write speeds of the microSDXC 512GB EVO Plus were sequential read speed of about 96MB/s, sequential write speed of about 85MB/s, random read speed of about 13MB/s, and random write speed of about 4.4MB/s.



The results for the Samsung microSD Express Card 256GB for Nintendo Switch 2 are as follows: sequential read speed was about 610-630MB/s, sequential write speed was about 220MB/s, random read speed was about 25-27MB/s, and random write speed was about 60-70MB/s. The read and write speeds are obviously much faster than the microSDXC 512GB EVO Plus, so it is expected that reading large game data will be faster and loading times will be shorter.



The Samsung microSD Express Card 256GB for Nintendo Switch 2 can be purchased at My Nintendo Store for 6,980 yen (tax included). However, at the time of writing, only winners of the Nintendo Switch 2 lottery are eligible for sale. It is also available on Amazon.co.jp and can be ordered for 6,317 yen (tax included).

Amazon.co.jp: [Nintendo Licensed Product] Samsung microSD Express Card 256GB for Nintendo Switch 2 (Samsung MicroSD Express Card 256GB): Games



In addition, the Nintendo Switch 2 (Japanese, domestic only) is priced at 49,980 yen including tax. The 5th lottery sale will begin in early July at the Nintendo official store, and reservations are also being made at various retail stores, and Amazon.co.jp is offering invitation sales on the following page.

Amazon.co.jp: Nintendo Switch 2 (Japanese/Domestic only): Games

in Review,   Hardware,   Game, Posted by log1i_yk