To check for fake capacity, click the button labeled .
: Click "Start Testing This Drive Immediately" (often translated from Chinese interfaces). Analyze Results mydisktest v242 portable
I was blaming a slow external NVMe. v242’s linear read test showed a perfect sawtooth pattern—fast, then zero, fast, then zero. Swapped the USB-C cable, and bam: smooth graph, full speed. The tool didn’t just tell me “it’s slow.” It showed me why . To check for fake capacity, click the button labeled
mydisktest v242 Portable is a lightweight, standalone utility for diagnosing, verifying, and benchmarking removable storage devices (USB flash drives, external SSDs, SD cards). Designed for technicians and power users, it runs without installation and offers fast, reliable checks to detect errors, measure performance, and ensure data integrity. v242’s linear read test showed a perfect sawtooth
| Feature | MyDiskTest v242 | H2testw | ChipGenius | | :--- | :--- | :--- | :--- | | | Capacity Verification & Speed | Data Integrity (Write/Read) | Controller/Firmware Info | | Ease of Use | High (GUI driven) | Medium (Basic UI) | Low (Technical raw data) | | Write Test | Yes | Yes | No (Read-only info) | | Language | Chinese/English (Translation packs) | English/German | English/Chinese |