Earldom ET-CR03 5-in-1 OTG Data Transfer Card Reader

Earldom ET-CR03 card reader is a versatile 5-in-1 OTG adapter designed to transfer photos, videos, documents, and other files between memory cards and compatible smartphones, tablets, laptops, and computers. It combines USB-C, Lightning (8-pin), and USB-A connections with dedicated SD and TF (microSD) card slots in one compact accessory.

Supporting the USB 2.0 data transfer standard, the ET-CR03 provides a practical way to access files stored on memory cards without relying on a separate computer as an intermediary. Its multi-interface design makes it useful for transferring camera photos to compatible mobile devices, accessing stored documents, and moving files between devices with different connection types.

Constructed from aluminum alloy and ABS, the Earldom ET-CR03 is designed for portable everyday use. Its plug-and-play operation on compatible devices simplifies setup without requiring a dedicated driver installation.

Key Features

• 5-in-1 Connectivity: Combines USB-C, Lightning, USB-A, SD, and TF/microSD interfaces.
• Dual Memory Card Slots: Supports standard SD cards and TF/microSD cards.
• USB 2.0 Data Transfer: Supports file transfers through compatible USB 2.0 connections.
• Up to 2TB Memory Card Capacity: Listed support for compatible SD and microSD cards up to 2TB.
• OTG Functionality: Enables direct file access between supported memory cards and compatible mobile devices.
• Plug-and-Play Operation: Designed to work with compatible devices without requiring dedicated drivers.
• Broad Device Compatibility: Supports compatible Windows, macOS, Android, and iOS devices.
• Aluminum Alloy and ABS Construction: Combines metal and plastic components in a compact accessory.
• Portable Design: Convenient for photographers, students, content creators, and everyday users.

Buyer Use Case

The Earldom ET-CR03 card reader is suitable for photographers, students, content creators, and users who frequently transfer files between memory cards and different devices.

Photographers can use it to access photos stored on compatible SD cards, while users of action cameras and other devices can transfer files from microSD cards. The additional USB-C, Lightning, and USB-A connections provide flexibility when working with compatible phones, tablets, laptops, and desktop computers.

It is particularly useful when you need to access files while traveling or move documents and media without first copying them to a separate computer. Before purchasing, check that your device supports the relevant connection and that its operating system allows access to the files on the inserted memory card.

Specifications

Specification	Details
Brand	Earldom
Model	ET-CR03
Product Type	5-in-1 OTG Card Reader
Host Connectors	USB-C, Lightning (8-pin), USB-A
Memory Card Slots	SD, TF/microSD
Data Transfer Standard	USB 2.0
Maximum Supported Card Capacity	Up to 2TB, as listed by the retailer
OTG Support	Yes, on compatible devices
Driver Installation	Not required on supported plug-and-play systems
Compatible Operating Systems	Windows, macOS, Android, iOS
Materials	Aluminum alloy and ABS
Design	Compact and portable

Compatibility

The Earldom ET-CR03 is designed for compatible devices that support its available connector types and memory card access functions.

• iPhones and iPads: Compatible models with Lightning or USB-C connections, subject to operating system and external storage support.
• Android smartphones and tablets: Devices with USB-C or compatible USB-A connectivity and OTG support where required.
• Windows computers: Compatible laptops and desktop PCs with a suitable USB-A or USB-C connection.
• Mac computers and MacBooks: Compatible models with a supported USB-C or USB-A connection.
• SD and microSD storage: Compatible SD and TF/microSD cards within the reader’s supported capacity.

The physical connector alone does not guarantee compatibility with every device. Mobile operating systems may differ in how they access external storage, and some devices may require OTG support or an appropriate file-management application.

What’s in the Box

• 1 × Earldom ET-CR03 5-in-1 OTG Data Transfer Card Reader.

Additional memory cards, USB adapters, and other accessories should not be assumed to be included unless confirmed by the specific retail package.

FAQ

1. Which memory cards does the Earldom ET-CR03 support?

It supports standard SD cards and TF/microSD cards. The retailer lists support for compatible memory cards with capacities up to 2TB.

2. Can the Earldom ET-CR03 transfer files directly to a smartphone?

Yes. It supports OTG file transfers on compatible smartphones and tablets, allowing you to access and transfer files without using a computer as an intermediary.

3. Does the Earldom ET-CR03 work with both USB-C and Lightning devices?

Yes. It includes USB-C and Lightning (8-pin) host connections, along with USB-A. Compatibility depends on the specific device, operating system, and supported external storage functions.