What Is OCuLink on a Mini PC?
OCuLink (Optical Copper Link, standardised as SFF-8611 on the host side and SFF-8612 on the device side) is a compact, latching cable connector that carries native PCI Express lanes out of a computer at full speed. It was originally developed as an internal connector for servers, SSDs and docking bays, and it has since become the most practical way to add an external graphics card (eGPU), a high-speed NVMe enclosure, a capture card or an FPGA/AI accelerator to a small-form-factor machine. Because OCuLink passes PCIe signal directly rather than tunnelling it through a thunderbolt-style controller,
