Rtl9210b Datasheet Jun 2026

The RTL9210B comes in a 68-pin QFN (Quad Flat No-leads) package. Understanding the pinout is essential for anyone designing a custom PCB. The pins are categorized by function:

The primary function of the RTL9210B is its automatic protocol switching. By reading the PEDET pin on the M.2 connector, it can auto-switch between USB-to-PCIe and USB-to-SATA modes, making it the ideal solution for a universal SSD enclosure.

PCIe Gen 3 x2 (up to 16Gbps theoretical, limited by the 10Gbps USB interface). Downstream Port (SATA): SATA Revision 3.2 (6Gbps). Package: QFN68 (8x8 mm). rtl9210b datasheet

Built-in switching regulator (5V to 1V) and support for external SPI Flash. Customization:

: As of the latest information, a complete, public PDF datasheet directly from Realtek is not freely available. The most authoritative source is the official Realtek product pages for the RTL9210B-CG (without PD) and RTL9210BPD-CG (with PD). These pages contain the most accurate summary of electrical, mechanical, and functional specifications. The RTL9210B comes in a 68-pin QFN (Quad

Supports advanced link power management like PCIe L1.Off, L1.Snooze, and ASPM L1 Integrated Regulators:

: Supports USB 3.2 U1, U2, and U3 low-power states. By reading the PEDET pin on the M

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The RTL9210B integrates internal processor subsystems, dynamic protocol translators, hardware-level power regulators, and embedded ROM/RAM blocks. Below is the foundational hardware specification breakdown compiled from the official datasheet: Specification Parameter Value / Implementation Standards 68-pin QFN Green Package Upstream USB Connection USB 3.2 Gen 2x1 (SuperSpeed Plus) up to 10 Gbps throughput USB Downward Compatibility USB 3.2 Gen 1 (5 Gbps), USB 2.0 High Speed, Full Speed Downstream PCIe Standard