Complies with the NVM Express Base Specification Revision 1.3 and PCI Express Base Specification Revision 3.0.
Fully compliant with NVM Express base specifications, translating USB Mass Storage Class Bulk-Only Transport (BOT) and USB Attached SCSI Protocol (UASP) requests straight into native NVMe commands. 2. Serial ATA (SATA) Protocol Engine
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. rtl9210b datasheet
The 68-pin Quad Flat No-Leads (QFN) package houses distinct structural block groups designed to isolate high-frequency differential lines from power rail interference: RTL9210B-CG - Realtek
: Supports the TRIM command set, which is essential for maintaining the long-term performance and lifespan of SSDs. Complies with the NVM Express Base Specification Revision 1
Integrated power delivery components often result in lower operating temperatures compared to older controllers like the JMS583.
This dual-protocol support is the primary reason the RTL9210B has become the industry standard. It allows a single enclosure to work with nearly any M.2 SSD, regardless of its underlying interface. Serial ATA (SATA) Protocol Engine The primary function
While a formal "one-piece" public datasheet is often restricted by Realtek to signed NDAs, technical guides and enthusiast-archived files typically outline its core capabilities: Key Technical Specifications
When an M.2 NVMe SSD is inserted, the chip provisions a . The integrated NVMe physical layer (PHY) and protocol driver are embedded within the chip's customized RAM/ROM architecture.
In a standard test environment utilizing a USB 3.2 Gen 2x2 port and a PCIe Gen 3 x4 NVMe SSD:
When an external drive is attached, the embedded microcontroller executes a detection routine via the hardware interface to determine the drive type: