The Omron R88A-CR1B040NF-E is a 40-meter servo motor cable from the R88A accessory family. It's the link between a servo drive and motor in Omron's G- and W-series servo systems.
Because it's a standard catalog item, lead times are typically consistent. I'd recommend confirming the exact connector variant for your drive and motor combination when placing the order – the R88A family includes multiple pinouts.