The TE Connectivity 8-1734774-0 is a 64-position PCI Express female card-edge connector on a 1.00mm pitch, dual-row layout, designed to accept a standard PCIe add-in card. It is the slot-side connector — the one soldered into the motherboard — that mates with the gold fingers on a graphics, storage, or network card. The 64 positions match the electrical lane count of a PCIe x16 slot, making this the common choice for desktop and server mainboards where a full-bandwidth x16 interface is needed. The housing is molded from black PA46 (Nylon 4/6) rated for reflow soldering, and includes both a board guide and a locking ramp to align the card during insertion and hold it against vibration.
The 1.00 mm pitch requires the motherboard layout engineer to verify trace escape routing between the through-hole pads.
Termination is through-hole solder with staggered rows — the two rows of pins are offset to allow easier routing between them on the motherboard. The connector does not use press-fit; it is designed for wave or selective soldering. The board guide and locking ramp are molded into the insulator, so no separate alignment hardware is needed. The card thickness accepted is 0.062" (1.57 mm), the standard PCIe card thickness.