Genuine Adaptec USB2Connect AUA‑2000CS PCI card 

Add two high‑speed USB 2.0 ports to older desktop PCs

Plus fully backward‑compatible with USB 1.1 devices 

Ideal for use with external drives, scanners, CD‑RW drives, and other retro peripherals.

I believe this is new old stock however I am listing as new open box because I can not confirm never opened, and I'm not opening it.

The box looks UN-opened the original USB2Connect line and has never been installed, perfect for restoring or upgrading late‑1990s and early‑2000s Windows systems while keeping period‑correct hardware.