Nidec (W40S12BS1D5-57T03A) FAN-0154L4 is a standard fan for CSE-113MFTS, CSE-801LTS, and CSE-813MFTS series chassis. This fan has been fully tested and validated by Supermicro to ensure the best quality and cooling performance. Manufacturer Nidec Fan Size 40mm Rated Fan Speed 22500 RPM Acoustic Noise Level 61 dBA Maximum Airflow Rate 28.6 CFM Rate Current (A) 1.05A Connector 4 Pin Dimensions 40L x 40H x 28W (mm) Validated Chassis CSE-113MFAC2-341CB, CSE-113MFAC2-605CB, CSE-113MFAC2-R606CB, CSE-113MFAC2-R608CB, CSE-113MFAC2-R804CB, CSE-513BTQC-350B, CSE-513BTQC-350WB, CSE-813MF2TQC-505CB, CSE-813MF2TQC-R608CB, CSE-813MF2TQC-R804CB, CSE-813MFTQ-R606CB, CSE-813MFTQC-350CB2, CSE-813MFTQC-505CB, CSE-813MFTQC-505CB2, CSE-813MFTQC-R407CB, CSE-813MFTQC-R608CB2 Search Terms 40mm fans, 40mm, A8-04028ANI-004T001, B8-04028ANI-011T001, W40S12BS1D5-57T07 Warranty 1 year warranty Product Environmental Compliance RoHS and REACH compliant, details available upon request