120x120x38mm Replacement Cooling Fans 120x120x38mm fans are widely used in industrial cabinets, power systems, telecom equipment and high-demand cooling applications. This size often appears in both AC and DC versions, so electrical matching is critical. Replacement Checklist Confirm the exact size is 120x120x38mm Check whether the original fan is AC or DC Verify voltage such as 12V DC, 24V DC,...