Although you seem to have mastered the situation, may I add more detailed information about this problem?
(I wrongly bought the SATA Icy Box for my NVMe-type SSD and it may be useful to share the experience).

This Icy Box IB-183M2 is suitable only for SATA type SSD. It is not compatible with NVMe type SSD, which are nowadays more common. For NVMe type SSD you need Icy Box IB-1817M-C32, with the rippled Aluminium casing.

Both types SSD look the same, as they have the same dimensions (22 x 30, 42, 60 or 80 mm) will mechanically fit into both Icy Boxes.

A closer look at the connections however shows that they are indeed different!
Icy Box SATA: has connection Key-B with 6+5 pins at the small side, and 2x28 pins on the long side.
Icy Box NVMe: has connection Key M with 5+4 pins at the small side and 2x29 pins on the long side.
See also https://www.delock.de/infothek...

If you put the SSD into the wrong box, it will end up that your SSD will not be found through your USB connection, and the SSD may heat up because the non-fitting numbers of pins will have caused short circuits.

Please delete my original comment. An outburst from a long evening of repair, and finding I ordered the wrong enclosure. But do please put "SATA" in the description to help others - very important. Especially when a Google search for "M.2 NVMe enclosure" comes up with this link in the first few hits.

Also,. the supplied screws are too short to correctly secure the SSD. Need to be a few mm longer!