RFT-1203-1P manufacturer datasheets:

PART NUMBER	MANUFACTURER	DESCRIPTION
G832MB031203022HR	Amphenol Communications Solutions	0.80mm Board-to-Board 85Ω Connector, Pitch 0.8mm, Height 5.7 mm, 120 Positions, Dual Row, BTB Vertical Receptacle SMT, Gold Flash White.
77313-120-30LF	Amphenol Communications Solutions	BergStik®, Board to Board connector, Unshrouded Header, 2.54 mm Pitch, Vertical, Double Row,Through Hole, 30 Positions
10027011-203HLF	Amphenol Communications Solutions	BergStik®, Board to Board connector, Unshrouded Right Angled Header, Surface Mount, Single Row, 3 Positions, 2.54 mm (0.100in) Pitch.