Do ATC HSK spindles use a draw bar like Cat 40 and ISO spindles?

I've been offered a deal on an HSK spindle cartridge but it doesn't have a tool clamp or automatic drawbar.

I can't find any aftermarket air powered or motorized drawbars or clamps for HSK A spindles on ebay (or anywhere else).

Is there a different name for drawbars for HSK spindles?