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Compact card reader with three connectors and two slots

ASUS RFID 12G

SKU CH-YDWJ-ZYJ89

A 3-in-1 card reader with dual slots and USB-C, USB-A and Micro USB plugs reads SD and microSD cards up to 512 GB on Android, Windows, Mac and Linux devices

  • Product dimensions1.9 L × 8.9 W × 13.9 H centimeters
  • Product weight0.027 kg
  • 3-in-1 card reader with dual slots and three connectors
  • OTG support for Android devices with Type-C or Micro USB
  • Plug-and-play operation on Windows, Mac, Linux and Chrome OS
  • Compact 1.9 x 8.9 x 13.9 cm design weighing 0.027 kg
  • Reads SD, SDHC, SDXC, MMC and micro variants up to 512 GB

What this 3-in-1 card reader does

This reader combines SD and microSD slots with USB-A, USB-C and micro-USB connectors in a single compact unit. It is built for photographers, content creators and mobile professionals who need to move files between cameras, drones, Android devices and computers without carrying multiple adapters.

Sustained transfer behaviour

The device uses USB 2.0 signalling, so extended copies run at the bus limit rather than the card's peak rating. Large batches of RAW images or video clips will transfer steadily but not at UHS-I speeds, and the FAT32 file-size ceiling of 4 GB applies unless the card is formatted exFAT.

Check your host before ordering

Your Android phone or tablet must support USB OTG; iPhone, iPad, Kindle and Fire tablets are not supported. A free USB-A, USB-C or micro-USB port is required on the host, and only one connector should be used at a time. Cards up to 512 GB in SD, SDHC, SDXC, MMC, RS-MMC and UHS-I formats are accepted.

How it compares

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

Price $9.99
Cheaper than about 95% of the 294 comparable items (median $21.99).

Specifications

Product
Brand nameACKSKY
Size & build
Product dimensions1.9 L × 8.9 W × 13.9 H centimeters
Product weight0.027 kg

Questions about this item

How much heat does the 3-in-1 card reader generate during all-day use?

The compact reader draws minimal power from the host USB 2.0 port and stays cool to the touch during continuous file transfers.

What ports must my device already have to use the three connectors?

You need an available USB-A, USB-C or Micro-USB port with OTG support on the Android device.

Will the reader work with SD cards formatted on an older Windows XP machine?

Yes, it supports FAT32 and exFAT volumes on Windows XP through Windows 10 and Mac OS X 10.3.9 or later.

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