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SanDisk QuickFlow B731 USB 3.2 Gen 1 250MB/s microSD UHS-I Card Reader

SanDisk QuickFlow B731 USB 3.2 Gen 1 250MB/s microSD UHS-I Card Reader

The SanDisk QuickFlow B731 is a high-performance microSD card reader designed to maximize workflow efficiency with transfer speeds up to 250MB/s. It provides a reliable, compact solution for offloading large media files from action cameras, drones, and smartphones via a standard USB-A connection.


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Description

The SanDisk QuickFlow B731 (SDDR-B731-GN6NN) is engineered to bridge the gap between high-capacity storage and rapid data ingestion. By utilizing USB 3.2 Gen 1 technology, this reader is specifically optimized for SanDisk QuickFlow-enabled cards, allowing users to bypass the standard UHS-I limitations. This ensures that photographers and videographers can move thousands of high-resolution images or hours of 4K footage in significantly less time, maintaining productivity during tight deadlines.


This product is for:
- Action camera users who need to quickly clear microSD cards from GoPro or DJI devices between sessions.
- Drone pilots recording high-bitrate 4K video who require immediate data transfer for field editing.
- Android smartphone users looking to back up extensive mobile photo galleries and 4K video clips to a PC.
- Content creators who utilize microSD cards across multiple devices and need a dedicated, high-speed interface.
- IT professionals and office users requiring a durable, portable USB-A reader for legacy and modern hardware compatibility.

Detailed specifications:
- Model Number: SDDR-B731-GN6NN
- Interface: USB 3.2 Gen 1 (Type-A)
- Backward Compatibility: USB 3.0, USB 2.0
- Max Read Speed: 250MB/s (with compatible SanDisk Extreme PRO cards)
- Max Write Speed: 150MB/s
- Supported Formats: microSD, microSDHC, microSDXC (UHS-I)
- Dimensions: 1.2 x 0.81 x 0.34 inches
- Weight: 1.814 grams
- Warranty: 5-Year Limited Warranty

Operating the QuickFlow B731 is a seamless experience characterized by its plug-and-play simplicity. Despite its incredibly small footprint and weight of less than two grams, the device feels sturdy and fits securely into USB-A ports without blocking adjacent slots. When paired with a 2TB SanDisk Extreme PRO microSDXC card, the performance gains are immediately noticeable, delivering industry-leading speeds that standard internal laptop card readers cannot match. It is an essential tool for anyone whose workflow depends on the rapid movement of large data sets.

In comparison to generic UHS-I readers that typically peak at 100MB/s, the SanDisk QuickFlow B731 offers more than double the read performance by leveraging proprietary SanDisk technology. While many newer peripherals are transitioning to USB-C, the B731’s USB-A connector ensures it remains compatible with the vast majority of desktop and laptop computers manufactured over the last decade. This makes it a more versatile choice for users who work across various workstations and environments where USB-A remains the dominant port standard.

Q&A:
- What is the maximum speed of the SanDisk QuickFlow B731? It supports read speeds up to 250MB/s and write speeds up to 150MB/s when paired with compatible SanDisk QuickFlow microSD cards.
- Will this reader work with older USB 2.0 ports? Yes, the USB 3.2 Gen 1 connector is fully backward compatible with USB 3.0 and USB 2.0 Type-A ports.
- Does it support the latest 2TB microSDXC cards? Yes, the reader is designed to handle high-capacity microSDXC cards, including the latest 2TB models.
- Is any software installation required? No, the B731 is a driverless, plug-and-play device that works instantly with Windows and macOS.
- What kind of warranty does this product have? This model comes with a 5-year limited warranty, providing long-term peace of mind for professional use.
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