First, a word about packaging, haptics etc .:
The map is blistered, but the blister is quite stable and the card small, so I can hardly imagine that the card is broken during transport. At first glance, the card looks reasonable, it must be everything and nothing "wobbles". In the second, however: It does not fit really stress-free into the housing, the diaphragm is in a not inconsiderable angle wrong, so that there is some tension when tightening. In addition, the SATA ports cheapest processing: Without security and m. E. extremely loose, so that when a disk failure should be seen first of all, whether really the disc is greased or only the connector has slipped out ...
OK, to the test results: Even the controller is apparently not so high ...
The following values were determined (two) Seagate Barracuda 1TB HDDs using HD Tune:
Reference: HDD solo on mainboard controller:
Transfer-Min: 63 MB / s
Transfer-Max: 126 MB / s
Transfer agent: 99 MB / s
Access time: 14 ms
Burst rate: 217 MB / s
HDD solo on map:
Transfer-Min: 63 MB / s
Transfer-Max: 103 MB / s (!)
Transfer agent: 91 MB / s
Access time: 14 ms
Burst rate: 80 MB / s
2xHDD RAID0 on map:
Transfer-Min: 108 MB / s
Transfer-Max: 129 MB / s
Transfer funds: 118 MB / s
Access time: 11.5 ms
Burst rate: 75 MB / s
4 stars because the card is cheap and the intended by me RAID0 has the desired effect, while others may be better and the burst rate, it is a pity well.
To notice is that this card is not suited to the ports simply to expand internally! Without RAID, the maximum transfer rate ~ 98MB / s is cut, so that the controller acts as a bottleneck at 70% of the panel, only the (inner) 30%, the HDD is slow and the controller thus does not slow !! Whatever the reason, I find that far from satisfactory and nice to correctly identify the upper limit in the graph.
Everyone must see it for themselves, but for Non- RAID systems, I would definitely advise against!
