So I'd like to buy a pair of these but can't seem to find the callout for the exact type of CS input they have. Is it the kind that accepts the CS Style CS6364? Thanks!
You'd have to inquire of LEX Products for a certain answer as the data sheet and user manual do not specify.
However... on the web page it shows accessories that include a 50 amp-rated cable assembly that does, indeed, use CS6364 and CS6365 connectors.
A similar "lunch box" or "pagoda" distro is built by INDU Electric and perhaps a few others. Custom connector selection (CS) may have an up-charge, but I think you'll want to get prices from more than 1 brand...