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Compact black USB-A microSD reader with RFID label

Sandisk SDDR-B531-GN6NN RFID USB 3.0 microSD Card Reader

SKU CH-6KXG-VVHK4 MPN SDDR-B531-GN6NN

Compact microSD card reader with USB 3.0 for UHS-I speeds up to 170 MB/s

  • Connection typesUSB Type A
  • HighlightsCompact
  • Product dimensions0.9 L × 17.8 W × 23.2 H centimeters
  • Product weight0.05 kg
  • Move files fast with up to 170 MB/s UHS-I speed
  • USB 3.0 moves content up to 10x faster than USB 2.0 readers
  • Works with USB 3.0 and backwards-compatible with USB 2.0 ports
  • Compact 30.48 x 20.701 x 8.763 mm design fits any workspace
  • Lightweight 0.05 kg build is easy to carry anywhere

Compact USB 3.0 microSD Reader

The SanDisk MobileMate SDDR-B531-GN6NN is a compact card reader designed for USB 3.0 ports. It accepts microSD cards and delivers UHS-I transfer speeds up to 170 MB/s. The device is backwards-compatible with USB 2.0 hosts. Its small form factor measures 30.48mm x 20.701mm x 8.763mm and weighs .05 kilograms.

Photographers needing quick offload

This reader suits photographers and mobile users who want fast file transfers from microSD cards to a computer. It is not for buyers who need to read full-size SD cards or other formats like CFexpress. Users requiring multiple simultaneous card slots should look at a different device.

Fits any USB-A port

The reader plugs directly into any USB Type-A port on a laptop, desktop or hub. It draws power from the bus so no external adapter is needed. The compact design leaves adjacent ports free for other peripherals. It frees you from bulky multi-card docks when only microSD access is required.

How it compares

Measured against everything we stock in RFID & Smart Card Readers, at today’s prices. Recalculated every night.

Price $23.99
Pricier than about 55% of the 294 comparable items (median $21.99).

Specifications

Product
Brand nameSandisk
Model nameSDDR-B531-GN6NN
Part numberSDDR-B531-GN6NN
Ports & slots
Connection typesUSB Type A
Size & build
Product dimensions0.9 L × 17.8 W × 23.2 H centimeters
Product weight0.05 kg

Questions about this item

Does this reader need a USB Type A port on my computer?

Yes, the reader connects through a USB Type A plug, so your device must provide a matching USB Type A socket.

Will it still work if I plug it into an older USB 2.0 port?

The reader is backwards-compatible with USB 2.0, so it will operate on a USB 2.0 port at USB 2.0 speeds.

How can I confirm the reader is delivering UHS-I speeds after setup?

Insert a UHS-I microSD card and transfer a large file; sustained read rates approaching 170 MB/s indicate the reader is performing at its rated speed.

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