Noctua NA-SEC1 Accessory 4-pin Extension Cables 30cm extension cables for PC fans provide more reach in large cases or other applications; can be daisy-chained for extra length 4-pin connectors support both 3-pin and 4-pin PWM fans Black connectors and black cable sleeving for clean optics Compatible with all 24V, 12V and 5V Noctua fans as well as many third-party fans Set includes 3 cables; Trusted Noctua quality backed up with 6-year manufacturers warranty