Gold Finger refers to the gold-plated connectors at the edge of printed circuit boards (PCBs). They serve as connectors to link the PCBs with a motherboard, ensuring reliable signal transmission and protecting the circuit board from deterioration. In industrial applications, gold fingers offer strong and durable protection, ensuring reliable operation under challenging conditions.

Many YANSEN products such as mSATA, M.2 NVMe, and memory modules use 30u gold plating on their gold fingers.