A rapid, efficient dive (R1717) by ROPOS to the International District installed J-Box MJ03C with the temperature-resistivity sensor (THSPHA301) inside the platform and connected it to a 2300-m extension cable (RS03W6) that runs to Primary Node PN3B. Video credit: NSF-OOI/UW/CSSF; Dive R1717; V14. (01:32)