The short version.
This EATOP flash drive reported a capacity of 1,014,706,995,200 bytes (about 1.01 TB). ValiDrive found a continuous validated region of 139,411,918,848 bytes (about 139 GB). The highest validated region was also reported at that same point.
In plain English: the drive claimed around a terabyte of storage, but this test verified a continuous region amounting to only about 13.7% of the claimed capacity. That is a substantial mismatch in this tested unit.
ValiDrive is a spot-check, not an exhaustive write-and-read of every byte. The 139 GB figure is the end of the continuous region the software validated. This test does not establish an exact physical capacity or the behavior of every EATOP drive.
What was tested?
A flash drive sold to the tester as an EATOP 1 TB product. The drive itself reported the byte count above to the software. The result came from the tester's ValiDrive report dated September 19, 2026 at 7:13 PM. ValiDrive checks randomly selected regions across the space a USB drive claims, writing and reading back test data to look for locations that fail verification.
The USB identification fields in the report say vendorco and productcode; these generic values do not independently confirm the seller or brand. A device serial appears in the original report but is withheld from this public page. The exact seller listing, price, and order details are not in this report, so this page does not quote a particular listing or assign intent to a seller.
Why a buyer should care.
When a drive reports more space than it can reliably store, the computer can appear to accept files even though their contents may fail to read back later. Gibson Research, the maker of ValiDrive, explains why checking stored data matters. Until the drive has been independently verified, do not trust it with the only copy of important files.
The measurements.
Here are the figures transcribed from the tester's report. The figures below describe random access time, not file-transfer speed. Time entries are in microseconds (millionths of a second); the ratio and percentage rows are unitless.
| Measure | Read | Write |
|---|---|---|
| Samples | 1,152 | 1,152 |
| Fastest access | 396 | 1,259 |
| Slowest access | 6,764 | 2,238 |
| Average access | 892 | 1,923 |
| Median access | 812 | 1,956 |
| Standard deviation | 342 | 138 |
| Coefficient of variation* | 0.383 | 0.072 |
| Combined access time | 1,028,376 | 2,215,987 |
| Share of access time | 31.70% | 68.30% |
*ValiDrive labels the coefficient of variation “variance.” It is standard deviation divided by the average. “Combined access time” adds the time spent on these sampled reads or writes; it is not the elapsed time for a full-capacity drive test.
Capacity entries in the report
- Declared drive size
- 1,014,706,995,200 bytes (1.01 TB)
- Validated drive size
- 139,411,918,848 bytes (139 GB)
- Highest valid region
- 139,411,918,848 bytes (139 GB)
- Reported USB vendor/product
vendorco/productcode- Test date and time
- September 19, 2026 at 7:13 PM
What comes next?
A full-capacity write-and-verify test could further establish how much data this specific unit retains across its advertised address space. Results from a separate file-copy observation are not combined with the ValiDrive data here. We will label any later test with its own method and date.