IcyDock SSD Xpander (SSD Hybrid) Review

I have been using HDTach for many years now and always find it is an invaluable benchmark to ascertain potential levels of performance. HD Tach is a low level hardware benchmark for random access read/write storage devices such as hard drives, removable drives (ZIP/JAZZ), flash devices, and RAID arrays.

HD Tach uses custom device drivers and other low level Windows interfaces to bypass as many layers of software as possible and get as close to the physical performance of the device possible.

We tested using the Long Bench.

Interestingly however, HD Tach would only test the complete drive, across both D and E partitions as seen in the image above.

As HD Tach reads the whole physical disk, rather than just the partitioned D: and E: sections, the graph takes a performance dive once it reaches the 500GB mark in the middle of the raid setup (above right). This significantly lowers the overall average result.

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