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Amazon.com: DB9 null modem male to female slimline data transfer serial port adapter 2 Pack : Electronics
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Amazon.com: LIANSHU DB9Pin Null Modem Adapter DSUB 9Pin Male to Female Slimline Data Transfer Serial Port Adapter. (100Pack) : Electronics
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Rocstor Premium 5ft 1 Port USB to Null Modem RS232 DB9 Serial DCE Adapter Cable with FTDI - 1 x DB-9 Female Serial - 1 x USB Type A Male - Black - RS232 Serial Adapter - Y10C225-B1
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