The USB transceiver units 730A, 730B may provide {TAIL ~ an interface} to {HEAD ~ respective USB signal lines} 
The USB transceiver units 730A , 730B may provide { TAIL ~ an interface } to { HEAD ~ respective USB signal lines }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD