Check the listing for details. YAESU FTDX1200 FTDX10 FT-950 10-PIN MINI-DIN Cable Amplifier Keying FT-450. Condition: New. Listed at 28.01 USD. These are GENUINE manufactured 10 pin mini-din connectors that fit perfectly! These are not made by Yaesu but fit PERFECTLY in FT-450, FT-450D, FT-950, FTDX-1200 and many other Yaesu rigs. RCA plug plugs into you AMPLIFIERS RELAY jack (Color of RCA may be red of white) FTDX10, FT-DX1200, FTDX-1200, FTDX1200, FT-450, FT-450D, FT-950 and others Want a less expensive amplifier keying cable that uses the 8 pin mini-din, search my eBay store. And now the fine print... We ship TWICE a week on Tuesdays and Fridays. Folks I feel it necessary to let you all new that doing business of any kind on "QTH.COM" is ill advised. I have just been ripped off for $85 on a WANTED TO BUY ad I posted. Your all better better off here in eBay because all buyers have a recourse!