Accurately Measure Flash Drive and Hard Drive Speed ​​— Parkdale Free Software 2026

Not all USB flash drives have the same speed, even if they're from the same brand or capacity. USB 2.0 drives are significantly slower than USB 3.0, and even drives of the same generation vary in real-world performance depending on manufacturing quality and chip age. Measuring your flash drive's actual speed — a process called benchmarking — gives you the true picture.

Using Parkdale to Measure Flash Drive Speed

Parkdale is a free portable tool (no installation needed) that measures the read and write speeds of flash drives, SD cards, and hard disks. Download it from the official website, connect your flash drive, then open the program. All connected storage devices will appear in the left panel.

Click on your flash drive to select it. On the right side, set the File Size to 250 MB for a meaningful test. Click Start and the program will immediately begin the benchmark. After completion, the results show Write Speed (data transfer from PC to flash drive) and Read Speed (reading data from flash drive to PC). You can repeat the same test on your hard disk from the same interface.

Additional Feature: Read-Only Mode

Under the FileAccess tab, Parkdale allows you to set the flash drive to read-only mode, preventing any files from being written to or deleted from it — useful for distributing files without allowing modifications.