The D4-320 hard drive enclosure can only recognize some hard drives on a certain computer, but all drives are recognized on a Windows system. What could be the reason?

Applicable Models

D4-320

The fact that the Windows system can normally recognize all hard drives indicates two things:
The hard drives themselves have no physical failures;
The data transmission link between the computer and the hard drive enclosure is basically normal.
Therefore, the issue is most likely not with the hard drives or the D4-320 device itself, but with the computer system that is failing to recognize them properly.
The most likely reasons are that the computer system has limitations on the number or capacity of mountable hard drives, such as:
Insufficient USB port power supply to support multiple hard drives simultaneously;
Operating system or driver layer limitations on the number of hard drives mounted on a single port;
Incompatible file system or partition table format (e.g., GPT partitions not properly recognized).
It is recommended to first check the computer's USB power capability and disk management policies, or try testing with an independently powered USB hub connected to that system.