The vertical, one-sided contact arrangement mates with a straight FFC or FPC cable 0.30 mm thick. The ZIF flip lock secures the cable without insertion force — the actuator flips down after the flex is seated, which avoids damaging the thin conductors on insertion.
Mating Cycles and Contact Plating — Field-Service Reality
That is a flash plating — enough for corrosion resistance in a clean indoor environment, but the mating cycle rating is 30 cycles. In a product that is assembled once and never serviced, 30 cycles is plenty. If the connector sees quarterly disconnect for field repair, the gold will wear through before the product's tenth year.
The F31S-1A7L1-11070 is the 70-position variant.