4CM PMD1238PQB1-A 4028 1u Server Cooling Fan 3.6W

Replacement cooling fan for 1u server applications — model PMD1238PQB1-A by 4CM. This 4028 (40 x 28 mm) fan is rated at 3.6W and is designed to fit compact 1u chassis where reliable airflow is required. Use as a direct swap or spare part to restore proper cooling in servers and network equipment. Verify mount and connector compatibility with your system before purchase.