These 27cm extension cables allow you extra prefer in the place you want to operate your PWM or traditional three pin fans inside your case. The wires are 27cm sleeved in black braiding with a 4pin female connector at 1 finish and splits to two 4pin male connectors at the other. Please your motherboard fan header is capable of the extra electric load earlier than shopping any of these. Please note - all of the connectors are 4 pin connectors, yet one of the connectors entirely has 3 wires. The explanation for here's that the sensor twine isn't used in this connector as though either fans were sending back news to the it'd not be to appreciate the information as both lots of news would be again during the unmarried connector. What happens is the fan with all four wires tells the the information, after which the controls the speed of either fans. These do also have a lower out for you to use three pin followers rather than 4 pin when you wish. size:Line size 27cm Material:PVC colour:black Package Contents: 1 * Fan Extension Adapter Cable Only the above equipment content, different merchandise usually are not included. Note: Light and various displays may cause the color of the item within the picture barely different from the real thing. The measurement allowed error is +/- 1-3cm.