Card Reader Controllers | BeiLuo Distributor

About Card Reader Controllers

Multi-format card reader controllers supporting SD, microSD, CF, and memory stick formats

As an authorized distributor of , BeiLuo provides a comprehensive range of Card Reader Controllers products. These products are widely used in industrial control, automotive electronics, consumer electronics, and communication equipment. We offer a complete product line with multiple series to meet various application requirements. All products are genuine and original, backed by professional technical support and comprehensive after-sales service.

Selection Guide: How to Choose the Right Card Reader Controllers

Product List

6 products available

Part Number ↕	Interface ↕	Supported Cards ↕	Max Capacity ↕	Max Speed ↕	SD Bus ↕	Package ↕	Stock Status	Action
RTS5170	USB 2.0	SD/SDHC/SDXC/microSD	2TB (SDXC)	480 Mbps (USB 2.0)	Up to 50 MHz	QFN-24	In Stock	View Details
RTS5249	USB 3.0	SD/SDHC/SDXC/microSD + Memory Stick	2TB (SDXC)	5 Gbps (USB 3.0)	UHS-I (104 MB/s)	QFN-32	In Stock	View Details
RTS5261	USB 3.0	SD/SDHC/SDXC/microSD + CF + MS	2TB (SDXC/CF)	5 Gbps (USB 3.0)	UHS-II (312 MB/s)	QFN-48	In Stock	View Details
RTS525A	PCIe 2.0 x1	SD/SDHC/SDXC/microSD	2TB (SDXC)	PCIe 2.0 x1 (5 GT/s)	UHS-I (104 MB/s)	QFN-32	In Stock	View Details
RTS5732	USB 3.0	SD/SDHC/SDXC (2 slots)	2TB per slot (SDXC)	5 Gbps (USB 3.0)	UHS-I (104 MB/s) per slot	QFN-40	In Stock	View Details
RTS5711	USB 3.1 Gen 2	SD Express (SD 7.0), SD/SDHC/SDXC	128TB (SD Express)	10 Gbps (USB 3.1 Gen 2)	-	QFN-40	In Stock	View Details

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Frequently Asked Questions

What card formats do Realtek card reader controllers support?

Realtek offers controllers supporting various combinations: RTS5170 supports SD/microSD/SDHC/SDXC, RTS5249 adds Memory Stick support, and RTS5261 supports SD/microSD/CF/MS in a single controller. Choose based on the card formats your application needs to support.

RTS5170 for SD only, RTS5249 for SD+MS, RTS5261 for multi-format including CF.

What interface do Realtek card readers use?

Realtek card reader controllers typically use USB 2.0 or USB 3.0 interface. USB 3.0 models (RTS525A) provide faster transfer speeds for high-speed SD cards (UHS-I/UHS-II). USB 2.0 models are cost-effective for basic applications. PCIe interface options are also available for integrated motherboard solutions.

USB 3.0 for high-speed cards. USB 2.0 for cost-sensitive basic applications.

Do Realtek card readers support UHS-II high-speed SD cards?

Yes, select Realtek controllers like RTS5261 support UHS-II SD cards with transfer speeds up to 312MB/s. UHS-I (104MB/s) is supported by most modern Realtek controllers. Check the specific controller datasheet for UHS support details. UHS-II requires proper PCB layout for the high-speed differential signals.

RTS5261 for UHS-II support. Most controllers support UHS-I.