usb motherboard connector

Speeds range from USB 2.0 High-Speed (480 Mbps) up to USB 3.0 SuperSpeed (about 5 Gbps) on PCIe expansion cards.

Some USB 3.0 PCIe expansion cards include an optional SATA or LP4 power connector and can supply up to 900 mA per port to bus-powered USB 3.0 devices.

These options typically add two or four ports — small internal adapters often provide two USB‑A ports, while expansion cards or bracket hubs commonly offer four.

Header types vary by adapter. Examples include 5‑pin headers, 10‑pin headers used by some AT‑style adapters, and listings that reference two 9‑pin USB headers. The exact header pinout depends on the specific adapter model.

These adapters typically mount in an empty case slot or bracket and connect to the motherboard via header cables. Examples list connections using two 5‑pin headers or a 10‑pin header to provide two external USB‑A ports. Installation specifics depend on the adapter model.

Listings describe Type‑A connectors as including metal contacts and electronic components, while Micro‑USB options are described as having plastic plus metal connector bodies. Exact materials vary by part and manufacturer.