Mine also looks the same …split in two about 3 years after I bought It with SL 2.0.
In a panic, I bought a new dongle but it still sits in the package. I developed a very good crazy glue skill so it is back in place. This has never been out of the studio but it can get bumped easily since it protrudes about 1 1/2" from the back of the computer.
The new wireless mouse/keyboard USB receivers are great and very slim and would be a great design for the dongle