USB 3.0 to SATA external drive connected but not visible in Windows explorer

I have bought an internal drive (Seagate Barracuda with 5900 RPM) like the following one and want to connect it as an external drive. I also bought a UGREEN USB 3.0 to SATA Converter and a power supply with 12 Volt and 2 Amps.

The problem I am facing now is that the device manager on Windows sees the device as ASMT 2115 SCSI Disk Device but doesn’t connect it as a drive to my PC.

I'm using a Windows 10 system but also tried it on a Windows 7 system with the same result. Picture below:

Assign a drive letter to your external drive.

Hit + R type diskmgmt.msc and hit Enter

From there select your volume, right click it, and from the context menu Change Drive Letter and Paths.

Hit Change, Assign the following drive letter, select a drive letter and click OK.

Edit: As questioner added details, diskmgmt.msc had greyed out context menu, and couldn't change drive letters.

I later recommended to use Paragon HFS+ for Windows. Once installed, Paragon HFS+ for Windows provides a high-speed read and write access to Mac-formatted partitions just as if it is a native Windows driver.