The HP NC325m features four Gigabit Ethernet ports on a single card, saving valuable server I/O slots for other purposes. The four ports provide the highest port density available for Pro Liant Blade System servers in a single adapter. The NC325m is ideal for virtualization, security, server consolidation, network segmentation, & other Pro Liant server applications requiring maximum throughput & port density. The total aggregate throughput of four Gb/s meets the needs for customers desiring high bandwidth but are not yet ready to move to 10 Gigabit Ethernet.; The x 4 PCI Express NC325m is supported on all Pro Liant c-Class servers in all mezzanine slots. However, if the NC325m is installed in mezzanine slot 1 of a half-height server blade, it will provide connectivity on only two of the four ports.