Sony Electronics Launches World’s Fastest Smart Multifunction USB Hub With UHS-II SD/microSD Reader For Efficient Workflow

Sony Electronics Launches World’s Fastest Smart Multifunction USB Hub with UHS-II SD/microSD Reader for Efficient Workflow
Sony Electronics – 07/12/2019

SAN DIEGO — July 12, 2019 — Sony Electronics today continues to make ultra-high-speed, reliable and efficient workflow a reality for professionals, with the introduction of the MRW-S3 – the world’s fastest UHS-II SD/microSD card reader and USB Hub with USB 3.1 Gen 2 and up to 100W USB Power Delivery (USB PD) and HDMI output capability support.

Sony has also introduced an addition to its TOUGH SD card range with the launch of the TOUGH SF-M series.

Power through projects
Professional photographers, videographers and creators no longer need to worry about carrying numerous adapters or fret about using up ports on their latest PCs with USB Type-C TM ports. The MRW-S3 is a one-stop solution for fast and reliable data transfer in the form of a handy USB Hub.

The world’s fastest UHS-II SD and microSD card reader handles everything from high-resolution RAW image files to 4K videos and allows the user to maximize their creativity affording more time to spend on retouching and editing content.

The MRW-S3 is also the fastest USB Hub supporting USB 3.1 Gen 2 which provides ultra-high-speed data transfer of up to 1000MB/s2. This brings out the full speed of each USB device so that professionals can make the most of their high-speed External SSDs like Sony’s SL-M and SL-C TOUGH specification series.

In addition, the MRW-S3 can receive up to 100W USB Power Delivery (USB PD)3 to ensure stable and reliable connections with USB devices. Users can be notified by the USB power level indicators if each port is ready to be connected at max power supply levels, eliminating worries of sudden disconnection due to poor power management.

Simplify your work life
The MRW-S3 has a HDMI output with 4K 30fps capabilities, to connect to external monitors without the hassle of carrying extra adaptors or sacrificing limited ports on your PC4.

The powerful USB Hub has a durable aluminum body with a wave surface to prevent scratches, while the grip makes handling easier than ever, especially when connecting and disconnecting devices. The MRW-S3 weighs a mere 95g and comes with a detachable USB-C to USB-C cable for connecting to the host PC and helps prevent cable damage. This cable also can be used for connecting to USB 3.1 Gen 2 devices or to a USB PD AC adapter up to 100W, thanks to its embedded eMarker.

More than TOUGH enough
Expanding on the TOUGH specification SD card, the SF-M series will be introduced and provides ultra-high-speed data transfer of up to 277MB/s read speed and 150MB/s write speed2.  Photographers and videographers can enjoy the speed benefits of the SF-M TOUGH SD cards, whether shooting high megapixel RAW photographs or recording 4K video. When used with the MRW-S3 USB Hub, backups are swift and buffer times reduced, resulting in a highly optimized workflow.

The SF-M TOUGH specification SD card is the world’s toughest5 UHS-II SD card that is 18x stronger6 than a standard SD card and has the highest-grade waterproof and dustproof levels7.  Even in extreme shooting conditions, your work is protected so you can focus on the job at hand. Additionally, a new conventional UHS-II SD card “SF-E” series will be introduced to provide users with a wider range of choice. It has fast transfer speeds of up to 270MB/s read and 120MB/s write8.

Both the SF-M TOUGH specification SD card and SF-E series offer file rescue software9, supporting both macOS and Windows, to help recovery data or photos accidentally deleted.

Both series will be available in 64GB, 128GB and 256GB capacities.

The MRW-S3, SF-M series and SF-E series will be available Fall 2019.

For product specifications, please visit:

[1] Based on Sony internal testing.  World’s fastest as of June 2019.

Based on Sony internal testing.  Transfer speed may vary and are dependent on host devices, the OS version or usage conditions.

From USB PD supporting AC adaptors. Recommended to use 35W or higher USB PD AC adapter.

Providing the host PC can support DisplayPort output from USB Type-C port

Based on Sony internal testing and compared to bending test standard for consumer SD card. World’s toughest as of June 2019.

18x stronger performance compared to standard SD bending test specification of 10N

Dust proof based on IP6X and Waterproof based on IPX8. Sony does not guarantee damage to recorded data or card based on every situation or condition.

8 Write speed of 64GB model is up to 70MB/s

File Rescue downloadable software available at Does not support data recovery for Content Protected and Game Data files. Not all data may be recoverable.

About Sony Electronics Inc.
Sony Electronics is a subsidiary of Sony Corporation of America and an affiliate of Sony Corporation (Japan), one of the most comprehensive entertainment companies in the world, with a portfolio that encompasses electronics, music, motion pictures, mobile, gaming and financial services. Headquartered in San Diego, California, Sony Electronics is a leader in electronics for the consumer and professional markets. Operations include research and development, engineering, sales, marketing, distribution and customer service. Sony Electronics creates products that innovate and inspire generations, such as the award-winning Alpha Interchangeable Lens Cameras and revolutionary high-resolution audio products. Sony is also a leading manufacturer of end-to-end solutions from 4K professional broadcast and A/V equipment to industry leading 4K Ultra HD TVs. Visit for more information.

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