80 positions, 3 rows, right-angle — the board-edge workhorse
The 1318751-7 is a 80-position, 3-row header from TE Connectivity AMP Connectors, pitched at 2.20mm between contacts and 3.00mm between rows.
Latch holder vs friction lock — retention matters here
The 80-position count and 3-row layout also mean a wider mating interface — the latch holder prevents accidental disconnection from cable strain in a harness.
