I have the DELOCK 84402 (0.5 meters) ordered me to boot 3.5 inch plates sporadically to my computer for backup. I've tried a number of cables that have the plate all not started. I have (though not from Amazon) buy this cable, the name is the same, the cable is located at the 22pin but something left, see photo.
This can be with me 3.5 inch drives on one eSATAp slot cover from the computer to boot. On screen you can compare the different representation. The seller is listed for the product at Amazon, I just do not know whether you can call it here.