Replacement cooling fan for selected Synology NAS devices, compatible with models DS1512+, DS1513+, DS1515+, DS1515, NVR216, DS1517+ and DS1517. This is a fan with dimensions of 80 x 80 x 20 mm, designed to restore proper airflow and cooling performance to the compatible enclosure. It is an OEM part, intended as a replacement component for Synology DiskStation and NVR units that use this type of fan. This specific fan is black, features an axial design, and has compact dimensions and lightweight construction.