Based on the Intel Gigabit Ethernet Controller, the Intel Ethernet Quad Port Server Adapter for IBM System x is Intel's fourth generation of PCI Express Gigabit Ethernet (PCIe Gb E) adapters. This adapter showcases the industry's first fully integrated, multi-port PCIe 2.0 Gb E controllers, providing a smaller footprint & lower power dissipation. In addition, this adapter offers advanced features, including support for multi-core processors & server virtualization, as well as a scalable PCI Express 2.0 interface. Intel's first eco-friendly, halogen-free design combines low power use & low cost for one of the best price to performance ratios in a multi-port solution that is available today. Designed For System x 3650; System x 3100 M4;x 3200 M2;x 3200 M3;x 3250 M2;x 3250 M3;x 3250 M4;x 3300 M4;x 3350;x 3400 M2;x 3455;x 3500 M2;x 3550;x 3550 M2;x 3550 M4;x 3620 M3;x 3630 M3;x 3630 M4;x 3650;x 3650 M2;x 3650 M4;x 3650 M4 HD;x 3655;x 3755;x 3850 M2;x 3850 X5;x 3850 X6;x 3950 M2;x 3950 X5;x 3950 X6