This product is either discontinued or we cannot get that from suppliers.
Plantronic 38340-01 Cable, Black, AV Cable Headset cable, Left Connector RJ-45, Left Connector Gender Male, Left Connector Qty 1, Right Connector Quick Disconnect, Right Connector Gender Female, Right Connector Qty 1.
Coiled cord connects any H-Series headset with Quick-Disconnect plug to compatible Plantronics amplifiers, or phones with compatible headset ports.