HP AZ551AA slot expander

PCI Express 4x/PCI Expansion Module Extend the capabilities of your HP Thin Client or HP Streaming Client with this PCIe x4/PCI Expansion Module. The HP Expansion Module gives you PCIe x4 expansion capabilities, or it can be configured instead to add a PCI 32-bit expansion slot. The Expansion Module also adds a parallel port and a second serial port.

- Gain a parallel port and an additional serial port
- Add peripheral options and accessories that meet your needs
- Easy to install, attaches to the thin client or streaming client without having to remove the metal side cover.