USB Speed Test Analyzer
Enter benchmark results to see whether your USB drive may be limited by its connection, a hub or adapter, or the drive itself.
1 Choose the USB connection used for the test
Select the slowest link in the chain: the computer port, cable/adapter, or drive connection.
2 Enter your measured benchmark speeds
Use the sequential read and write results from a benchmark application. Enter values in MB/s.
For a more reliable result, connect the drive directly to the computer, close file-transfer apps, and test again after the drive has been idle for a few minutes.
3 Check the test setup
These details help identify common connection bottlenecks.
USB Speed Assessment
Your measured read and write speeds compared with a practical reference level for the selected connection.
Recommended next steps
This is a troubleshooting guide, not a hardware certification. USB flash drives vary widely, and sustained write speeds may fall after their fast cache is full.