Why is the USB 4 Enclosure with Samsung M.2 SSD slower in Windows 10/11?
At present, all brands of USB 4 NVMe SSD Enclosure use Samsung's M.2 NVMe SSD, and the read and write speed on Windows computers is relatively slow, basically not exceeding 600MB/S. The speed on the MAC device is OK, but the speed performance of other brands of SSDs in these two operating systems is not so different. This is caused by the compatibility between the USB 4 enclosure master control solution and Samsung's NVMe SSD, and there is no good solution yet.
If users want to use Samsung's NVMe SSD to obtain better performance on Windows computers, there is currently only one way to enable the external disk write cache in the Windows system and select better performance in the strategy. At present, the writing speed of the 980PRO is about 2 times higher, which is 1200MB/S, which is not as good as the writing speed on the MAC.
While disk write caching may increase system performance, it can also increase the chances of data loss in case of power or system failures before the data from the write-cache buffer is flushed by writing the data to the disk.
However, you must use the Safely Remove Hardware process to remove the external drive. The Safely Remove Hardware process protects the integrity of data on the device by making sure that all cached operations finish.
Windows defines two main policies, Quick removal and Better performance, that control how the system interacts with external storage devices.
In earlier versions of Windows the default policy was Better performance.
Beginning in Windows 10 version 1809, the default policy is Quick removal.
Better performance - This policy manages storage operations in a manner that improves system performance. When this policy is in effect, Windows can cache write operations to the external device.
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