YOUNUON 4020 40x40x20mm Computer Case & 3D Printer Cooling Fan — 24V/12V/5V, 2PIN/3PIN, 4cm (1.57inch)

Compact YOUNUON 4020 cooling fan engineered for computer case ventilation and 3D printer cooling. The low-profile 40mm unit measures 40x40x20mm (4cm / 1.57inch) and is suitable where space is limited. Key details: - Brand: YOUNUON - Model: 4020 - Size: 40x40x20mm (4cm / 1.57inch) - Voltage compatibility: 24V, 12V, 5V - Connector options: 2PIN or 3PIN - Intended use: Computer case cooling, 3D printer fan A straightforward replacement or spare fan for devices that require a compact 4020 form factor with multiple voltage and connector options.