Storage Connectivity Solutions

Application

Description

Card reader controllers for PCs, laptops, mobile accessories, and embedded systems

Core Advantages

High-Speed Transfer

Wide Compatibility

Multiple Interfaces

Low Power

Applications

PCs and laptops

USB card readers

Mobile accessories

Digital cameras

Embedded systems

Technical Specifications

Card Support

SD, SDHC, SDXC, microSD

Max Transfer Rate

Up to 312 MB/s (UHS-II)

Interface

USB 2.0, USB 3.0, PCIe

Supported Capacity

Up to 2TB

Ready to Implement This Solution?

Contact our FAE team for design support and quotes

Frequently Asked Questions

What SD card formats do Realtek controllers support?

Realtek card reader controllers support SD, SDHC, SDXC, and microSD cards with capacities up to 2TB and various speed classes including UHS-I and UHS-II.

All controllers support standard SD formats. Choose UHS-II controllers for maximum speed.

What is the difference between RTS5227 and RTS5209?

RTS5227 is a single-slot UHS-II PCIe controller. RTS5209 is a dual-slot UHS-II controller with independent PCIe lanes for simultaneous full-speed operation on both slots.

RTS5209 for dual-slot professional use. RTS5227 for single-slot cost optimization.

Do Realtek card readers support USB Type-C?

Yes, Realtek offers USB Type-C card reader controllers like RTS5321 with integrated Power Delivery support for modern mobile accessories.

USB-C controllers for modern mobile accessories. USB-A for traditional applications.