What This Backshell Covers
The TE Connectivity AMPLIMITE 5748678-4 is a two-piece backshell for 37-position D-subminiature connectors. It accepts round cable with a 180° straight exit and includes the Mating Screws 4-40 and grommets as part of the assembly hardware. The shell is molded from ABS plastic in black and is unshielded, so it provides cable strain relief and connector retention but no EMI containment.
