Hypex SMPS400A400 broken

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I got the new devices from china. Question is if I got the wrong type! LT 0244 LVP 640P insted of LT 3228 LVP 640P. The old to the left and the new to the right. Or are they the same?
 

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I would be worried to use such devices, just to do more damage if devices are problematic. But you can try to test them before using them, if you have any high voltage DC supply, say 100v, which you would apply to DS, having G connected to S.
If it holds that voltage, then you have better chance that it will work. At least DC rating would be enough. In the end, I don't think you can do much, but to put them into place and see what happens. That or get some similar specs fet from known sorces
 
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