Intel has been making quad port adapters for a long time.  Sometimes however things catch up with us and some of our products end up between specifications, especially with cutting edge work.  The rapid deployment of PCI Express® Base Specification Revision 2.0 out into the market has left some once easy choices not so easy.  In the adapter market, Intel had a stable of four port adapters that customers could pick from.  The current adapter, Intel® Gigabit ET Quad Port Server Adapter is from the post 2.0 era.  The other adapters should stick to the 1.0 only slots.

The ET adapter also has Intel® Virtualization Technology for Connectivity (Intel® VT-c), a feature that marries well with the higher port density that a four port adapter brings to the table.  Older adapters are still great; just make sure to make sure it is not in a 2.0 slot.

Big ending!

1.  The Intel Gigabit ET Quad port adapter is a perfect match for PCI Express 2.0 based servers.

2.  Thanks for using Intel networking products.