Simply use this adapter to change gender of connections. Make it possible to connect your printer， scanner， digital camera， HDD Enclosure and other peripheral devices with USB Type B port to your computer Connector A : 1 - Type A USB Male Connector B : 1 - Type B USB Female Color : Black (Note : Photo attached is for reference only， it may be slightly varied in items of colour， shape from the actual item delivered from time to time) A few more Adapters with related gender for your selection : USB AF to BF， USB AF to BM， USB AM to BM and many more.