The USB3SMBADAP6 Internal USB (Universal Serial Bus) 30 Adapter Cable extends a 20-pin motherboard USB (Universal Serial Bus) 30 header connection & enables you to add 2 internal female USB (Universal Serial Bus) 30 (Type A) ports With the addition of the 2 internal USB (Universal Serial Bus) 30 ports you can connect your internal devices (internal card reader hard drive etc) directly to your motherboard which allows for a cleaner installation avoiding the need to run your cables outside the system case to external USB (Universal Serial Bus) 30 ports Backed by our lifetime warranty this USB (Universal Serial Bus) 20-pin Adapter offers 6-inches in cable length which lessens strain on the motherboard header ensuring a reliable long-lasting connection