Rtl9210b Datasheet 2021 [new] -

You can use the Realtek RTL9210B MP Tools (often found on forums like inside9 or various GitHub mirrors) to check your current firmware version.

Later 2021 revisions (firmware 1.27+) added: rtl9210b datasheet 2021

Supports PCIe Gen3 x2 (up to 16GT/s total bandwidth) and is compatible with standard NVMe command sets. You can use the Realtek RTL9210B MP Tools

Realtek published three errata specific to chips manufactured before Week 24 of 2021: But the word "2021" caught her eye

Elara almost deleted it. But the word "2021" caught her eye. Most bridge controller chips on the market were running on firmware from 2018 or 2019. They were slow, prone to overheating, and famously incompatible with the new M1 MacBooks that were flooding her workspace.

The RTL9210B will begin thermal throttling at 85°C junction temperature, reducing PCIe width from x2 to x1. Without a copper pad under the QFN, the chip will hit 105°C and shut down within 90 seconds of continuous writing.

The 2021 timeframe saw significant firmware and documentation updates focused on device stability: