The DF17(1.0H)-80DP-0.5V(57) from Hirose is surface mount header with outer shroud contacts, board guide and solder retention. This header has 80 positions, 2 rows and 0.020" (0.50mm) pitch. Stacking height 4mm. The DF17(1.0H)-80DP-0.5V(57) is made of white polyamide insulator, tin-lead plated phosphor copper solder tab and gold plated phosphor copper contacts. Operating temperature range is from -35°C to 85°C.