HP Plastic Kit 905770-001 is a parts kit listed for the HP ProBook 450 G4 and ProBook 455 G4 laptops. It brings together small brackets and inserts for the fingerprint reader and optical drive areas.
The kit includes a fingerprint reader bracket and an optical drive bracket. It also contains a fingerprint reader insert for models without a fingerprint reader, plus an optical drive insert for models without an optical drive. These parts provide the listed bracket and insert options for the corresponding laptop configurations.