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SanDisk QuickFlow microSD reader with USB-C connector

SanDisk

SanDisk QuickFlow MicroSD Reader SDDR-B751-GNANN

SKU CH-A8XE-ZR43N MPN SDDR-B751-GNANN

A USB-C microSD reader delivering up to 250 MB/s read and 170 MB/s write speeds for UHS-I and UHS-II cards

  • Card typeMemory Card Reader
  • TypeMicroSD
  • Read SpeedUp to 250MB/s read
  • Write SpeedUp to 170MB/s write
  • FeaturesDive into the future of data transfer with the SANDISK® Quic

Capacity QuickFlow™ Card Reader

Show 1 more configurations
  • Up to 250 MB/s read speed for rapid media offload
  • Up to 170 MB/s write speed for quick card population
  • USB-C 3.2 Gen 1 interface compatible with USB-C 2.0 and 3.0 ports
  • Supports both UHS-I and UHS-II microSD cards for versatile use
  • Compact design with activity indicator for portable workflow

SanDisk QuickFlow MicroSD Reader

The SanDisk QuickFlow MicroSD Reader SDDR-B751-GNANN is a USB-C memory card reader built for photographers and videographers who need fast offload speeds. It accepts microSD cards and connects directly to USB-C devices for mobile or desktop workflows. The compact design makes it a practical addition to a field kit or studio setup.

USB-C 3.2 Gen 1 interface

The single specification that decides compatibility is the USB-C 3.2 Gen 1 interface, which also works with USB 2.0 and 3.0 ports. This connection determines the maximum transfer ceiling for any inserted card. Buyers with only USB-A ports will need a separate adapter or cable to use this reader.

250MB/s read and 170MB/s write

The reader supports UHS-I and UHS-II microSD cards, delivering up to 250MB/s read and 170MB/s write speeds. It comfortably handles high-resolution RAW bursts and hours of 5.3K or 4K UHD footage from action cameras or drones. Performance will run out at the card's own speed limit or the host port's bandwidth ceiling.

Highlights

  • Up to 250 MB/s read speed for rapid media offload
  • Up to 170 MB/s write speed for quick card population
  • USB-C 3.2 Gen 1 interface compatible with USB-C 2.0 and 3.0 ports
  • Supports both UHS-I and UHS-II microSD cards for versatile use
  • Compact design with activity indicator for portable workflow

Specifications

BrandSanDisk
Card typeMemory Card Reader
SeriesQuickFlow
ModelSDDR-B751-GNANN
Part NumberSDDR-B751-GNANN
TypeMicroSD
Read SpeedUp to 250MB/s read
Write SpeedUp to 170MB/s write
FeaturesDive into the future of data transfer with the SANDISK® QuickFlow™ microSD™ Card Reader with USB-C™, our fastest microSD™ card reader. An essential part of your workflow, the USB-C™ reader/writer helps maximize speed so you can quickly start your photo and video file post-production processes. Upload thousands of high-resolution RAW images shot in continuous burst mode, plus hours of 5.3K or 4K UHD videos* shot on your action cam or drone, in a flash. Move media straight from your microSD™ card to USB-C™ devices for seamless editing in mobile or desktop apps and effortless sharing on
Shipping weight0.05 kg
Package size133 × 102 × 20 mm

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Questions about this item

What does the 250 MB/s read speed mean when I plug the reader into my laptop?

The 250 MB/s figure is the maximum sequential read rate the reader can sustain with a UHS-II microSD card over its USB 3.2 Gen 1 link; actual throughput will be lower if the card or host port is slower.

Which USB standard does the USB-C port use and what throughput does it cap at?

The reader uses a USB 3.2 Gen 1 Type-C interface, which caps the host connection at 5 Gb/s, and it remains compatible with USB 2.0 and 3.0 Type-C ports.

What card sizes and physical slot does the reader accept?

It accepts microSD, microSDHC and microSDXC cards in a single microSD slot; full-size SD cards require a separate adapter.

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