I find it a bit rigid connection cable, but there is no play at the connection to the housing.
At transmission level of the hard disk, it remains a little less protected than external hard drives already sold housing. So I will avoid too shake.
If ever your hard drive is only 7mm of thickness (instead of the usual 9 mm), there is also additional foam to stick to adjust the thickness. Do not stick them if your hard drive is standard size (9mm), because you will have to remove in order to close the box.
Small problem: the "French version" of the record is gibberish ... so read the English version directly if you are bilingual (possibly pass misunderstood passages in an automatic translator, it will not be worse than the "French version "the leaflet). But hey, we can do without the essential details of the instructions being in the images (including foams for additional explanation).