4Pcs MAX3232CDWR SOIC-16 RS-232 Interface IC 3-5.5V Mult-Ch RS232

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4Pcs MAX3221IDBE4 RS-232 Interface IC 3-5.5V Single-Ch Line Drvr/Rcvr

4Pcs MAX3232IDW RS-232 Interface IC 3-5.5V Multichannel Line Drvr/Rcvr

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4Pcs TRS232ECD SOP-16 RS-232 Interface IC Dual RS232 Drvr/Rcvr