At high data rates, electrical shielding of the card is necessary in order to prevent the loss of {HEAD ~ data} or the influencing of the data of {TAIL ~ a passive card} by an adjacent active card 
At high data rates , electrical shielding of the card is necessary in order to prevent the loss of { HEAD ~ data } or the influencing of the data of { TAIL ~ a passive card } by an adjacent active card
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH