InLine OTG Card Reader Dual Flex for SD, micro SD w/ USB Port and 2 Card Slots

The InLine OTG Dual Flex 66776 card reader enables mobile devices with OTG support to access SD and microSD memory cards directly via a single micro-USB port. The reader provides two card slots (SD and microSD) and supports card types MicroSD (TransFlash), MicroSDHC, MicroSDXC, SD, SDHC and SDXC with capacities up to 2 TB, allowing straightforward file transfer between smartphones, tablets and removable storage.

Advantages

This compact OTG card reader offers dual-slot functionality in one micro-USB connector, enabling simultaneous access to SD and microSD cards where the host device supports USB OTG. It supports a wide range of card formats up to 2 TB and does not require internal installation, making it portable and easy to use for on-the-go data exchange.

Suitable for (tasks / use cases)

• Transferring photos and video files from SD or microSD cards to OTG-capable smartphones or tablets
• Backing up mobile device data to removable memory cards
• Accessing files from different card types without a PC
• Quickly moving files between two memory cards via an OTG host device

Key specifications

• Manufacturer: InLine
• Model / MPN: 66776
• EAN: 4043718213955
• Interface: Micro-USB (OTG)
• Card slots: 1 × SD, 1 × microSD
• Supported cards: MicroSD (TransFlash), MicroSDHC, MicroSDXC, SD, SDHC, SDXC
• Maximum supported capacity: up to 2 TB
• Internal: No (external card reader)

How to use

Insert an SD card into the SD slot or a microSD card into the microSD slot. Connect the reader's micro-USB plug to an OTG-capable smartphone or tablet. The host device should recognize the inserted card as external storage; use the device's file manager or connected apps to view, copy or move files. Remove cards only after the host device indicates it is safe to eject or after unmounting the storage to avoid data loss.

Recommendations

Check that your smartphone or tablet supports USB OTG before use. For large transfers, ensure both the memory card and the host device have sufficient battery charge. Avoid removing cards during data transfer and use cards formatted in a file system supported by your device (e.g., exFAT for cards >32 GB) to ensure compatibility.