If you are shopping for an external SSD enclosure, look for the inside. And if you are an engineer trying to debug a connection drop, downloading that datasheet might just save your weekend.
Disclaimer: Always verify chip revisions (RTL9210B vs. RTL9210B-CG) before flashing firmware, as pin compatibility may vary. Rtl9210b Datasheet
Let’s break down what the datasheet actually tells us and why you should care about the firmware living inside your enclosure. The RTL9210B is a bridge controller chip manufactured by Realtek . Its job is to translate the PCIe signals from an NVMe SSD into USB signals (specifically USB 3.1 Gen 2 or USB 3.2 Gen 2). In plain English: It lets your fast internal SSD talk to your computer’s USB-C port. If you are shopping for an external SSD