BitFenix Alchemy Multisleeve 4-Pin 30cm PWM Fan Extension Cable - Black Sleeve/Black Connector (BFA-MSC-4F30KK-RP) Premium Ultra-Dense Weave Multi-Sleeved Construction High Quality Cable Assembly Precision Molded Connectors Connector Type: 4Pin Fan Male Connector, 4Pin Fan Female Connector Cable Length: 30.0 cm