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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

  • Memory card formatMemory Card Reader
  • Max read speedUp to 250 MB/s read
  • Write throughputUp to 170 MB/s write
  • Product typeMicroSD
  • Key featuresDive into the future of data transfer with the SANDISK® Quic

Capacity QuickFlow™ Card Reader

  • 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.

How it compares

Measured against everything we stock in SD & MicroSD Memory Cards, at today’s prices. Recalculated every night.

Price $36.99
Cheaper than about 58% of the 1,947 comparable items (median $46.99).

Specifications

Product
Brand nameSanDisk
Product lineQuickFlow
Model nameSDDR-B751-GNANN
Part numberSDDR-B751-GNANN
Product typeMicroSD
Performance
Max read speedUp to 250 MB/s read
Write throughputUp to 170 MB/s write
Storage
Memory card formatMemory Card Reader
Size & build
Shipping weight0.05 kg
Package size133 × 102 × 20 mm

Other versions of this model

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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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