Images of UHS-II SD/microSD Reader on USB Hub
Images of UHS-II SD/microSD Reader on USB Hub
Images of UHS-II SD/microSD Reader on USB Hub
Images of UHS-II SD/microSD Reader on USB Hub
Images of UHS-II SD/microSD Reader on USB Hub


The fastest UHS-II SD/microSD reader for the shortest transfer times

With speeds up to 300MB/s, the UHS-II SD and microSD card reader on the MRW-S3 offers the fastest way to ingest and copy high-res photos and videos shot with UHS-II supported cameras. At the end of a long day’s shoot this can save you significant time backing-up your work and enables you to review, edit and share your images that much sooner. 

The fastest USB hub

USB hubs don’t come any quicker than the MRW-S3. Supporting with USB 3.1 Gen 2, it offers transfer speeds up to 1000MB/s – so you can not only use UHS-II cards like the SF-G series, with speeds up to 300MB/s, but also use other card readers such as XQD and CFexpress. And you can make the most of high-speed USB external SSD (Solid State Drive) storage devices for rapid back-ups too.

100W USB Power Delivery for stable supply

Compliant with USB PD AC adapters of up to 100W, the MRW-S3 ensures a stable and reliable power supply from your USB PD compatible AC adapter to all connected devices (to USB Type-C™ and USB Standard-A port). For professional photographers and videographers, this means they can concentrate on their workflow without worrying about sudden disconnections due to insufficient power supply. A USB PD AC adapter of 35W or above is recommended.

USB power level indicators

The MRW-S3 has power level indicators for both its USB-A and USB-C ports – so before connecting your USB devices, you’ll know if there’s enough power available for a stable, reliable connection. If the LED indicator is fully-lit, the USB port is ready at maximum supply level. A blinking LED means there’s enough power for conventional USB devices but nothing with high power consumption. And if the LED is off, you can only connect self-powered USB devices.

Detachable USB-C to USB-C cable

USB hubs with a permanently attached USB-C cable are not only awkward to carry but the point where the cable connects to the body can also become damaged over time. So the MRW-S3 has a detachable USB-C to USB-C cable, keeping cable wear and tear to a minimum and enabling your USB hub to pack down slim when it’s not in use. This short cable can also be used for regular USB 3.1 Gen 2 device connection or as a connecting cable for a USB PD AC adapter up to 100W, thanks to its embedded eMarker.

4K 30fps capable HDMI output 

No HDMI output on your laptop or PC? No problem. The MRW-S3 includes an HDMI output capable of up to 4K 30fps output, enabling you to review and edit your work on a TV or monitor quickly and easily. And, for laptops with limited ports, it spares you having to carry an extra dongle and frees up another of your precious USB-C ports.

Stylish and durable aluminium body with wave surface

The durable brushed aluminium finish keeps scratches and fingerprints to a minimum. Meanwhile, the tactile wave surface offers a secure grip, making it easier to handle when you’re regularly connecting and disconnecting devices and cables throughout the day.

Compact and lightweight

The MRW-S3 measures just 118.7 x 50.3 x 14mm and weighs a mere 95g – making it easy to carry when you’re shooting on location.


The MRW-S3 UHS-II SD/microSD Reader on USB Hub is essential equipment for photographers and videographers who want to maximise workflow efficiency with its high speed, reliability and stability. This hub has 4K HDMI out and rapid charger for smartphones with MacBook and Windows laptop compatibility. The unmatched data transfer speeds achieve up to 1000MB/s (USB 3.1 Gen 2 connection), as well as full-speed UHS-II SD memory card support (up to 300MB/s).
  • USB 3.1 Gen 2 supporting, capable of actual transfer speeds up to 1000MB/s

  • Up to 300MB/s UHS-II SD and microSD card reader

  • Up to 100W USB PD IN with USB power level indicators for stable and visible power management

  • HDMI output (up to 4K)

  • Slim to carry with detachable USB-C to USB-C cable to minimise wear and tear

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