JST SH 9-Pin Cable - 100mm long : ID 4350 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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Amazon.com: PNGKNYOCN 4.5 Feet DB9 (9 Pin) Female to DB25 (25 Pin) Male Empty Modem Serial Parallel Printer Cable YOUCHENG for DTE PC Mac Linux Data Transmission Communication : Electronics