6404X5RSRS - 640,4 Weigh Bar, 5-pin connector w/ two RS-232 ports

640\640XL Indicators: Model 640-640XL Indicators - Indicator: Multiple 3 or 4 Weigh Bar Connector (Weigh Bars plug directly into 640-XL) : 640,4 Weigh Bar, 5-pin connector w/ two RS-232 ports - Avery Weigh-tronix Part number: 6404X5RSRS