Specifications:

Length: ~ 12 3/4"
Connectors: 3pin male connector to 4pin male connector, with 4pin female connector out
Color: UV Red

Description:

3pin to 4 pin Adapters are great when there are not enough motherboard headers to accommodate for all the 3 pin fans inside a case.  Power a 3 pin fan directly from from the power supply without using up any extra 4pin Molex connectors. 

This adapter is UV reactive and is the choice for users that are striving for  a custom look.  Don't let the ugly look of regular adapters ruin your custom setup.