HPE 686749-001 is a front system fan assembly for PCI boards. It is a service part intended for the front system area, helping provide airflow around the PCI board section.
The assembly measures 80 × 80 × 38 mm. Its listed contents are the fan, a blue retainer carrier and a cable assembly, supplied together as one assembly.
This description identifies the HPE part by its OEM reference, 686749-001, and covers the dimensions and components confirmed by HPE PartSurfer.