ASSMANN WSW Components offers a range of interconnect products, including made-to-order cable assemblies like H3CCS-3418G. What happens when this option is backordered and unavailable, however? Are there any reasonable alternatives?
You can find a variety of options as close to direct as possible here: Rectangular Cable Assemblies. However, the tin plating used in the original cable is not commonly available in this style of small-signal cabling. If you can tolerate a gold-to-tin mating interface (this is not recommended, but needs must when lines are down), you can find a much wider variety of more regularly stocking options with gold plating available here: Rectangular Cable Assemblies w/Gold Plating.