The SA9123L is a USB 2.0 to SATA bridge controller manufactured by Initio Corporation (now part of Broadcom). It's commonly found in:
When you connect such a device to your computer, Windows, Linux, or macOS may not recognize it without the correct driver, or it may show up as an "Unknown Device" or with a yellow exclamation mark in Device Manager.
Use Driver Update Software:
Windows Update:
Device Manager:
After following this guide, verify success with these steps:
Step 1: Download the Driver The driver is commonly packaged as "SA9123L_USB_Driver" or sometimes identified as a Spreadtrum (SPD) or UNISOC SCI USB2Serial driver. sa9123l driver full
Step 2: Installation Process
Step 3: Verify Connection
Cause: Power management is cutting power to the USB port. The SA9123L is a USB 2
Solution (Full Driver Feature):
"Device Cannot Start (Code 10)" This usually happens if you have a generic cable with a "fake" chipset and you installed the newest driver.
"USB Device Not Recognized"
How to change the COM Port Number? Some legacy software only looks for COM1 or COM2.
Once the file is downloaded, follow these steps: