The Intel Quad Port Gigabit Ethernet Mezzanine Card I350-T4 from Dell TM is designed with performance enhancing features and new power management technologies for Dell TM PowerEdge TM Blade Servers. Built with the bridgeless Intel Ethernet Controller I350, these adapters represent the next step in the GbE networking evolution for the enterprise and data center by introducing new levels of performance through industry-leading enhancements for both virtualized and iSCSI Unified Networking environments. This new adapter also includes new power management technologies such as Energy Efficient Ethernet (EEE) and DMA Coalescing (DMAC). Also, with native iSCSI initiators built into Microsoft Windows , Linux , and VMware ESXi platforms provide a simple, dependable, cost-effective way to connect to LANs and iSCSI SANs. This product has been tested and validated on Dell systems. It is supported by Dell Technical Support when used with a Dell system. Device Type: Network adapter Ports: Gigabit Ethernet x 4 Data Link Protocol: GigE Data Transfer Rate: 1 Gbps Network / Transport Protocol: iSCSI System Requirements: Linux, Microsoft Windows XP, Microsoft Windows Server, Microsoft Windows 7, Microsoft Windows Vista, FreeBSD 8.0, VMware ESXi Designed For: PowerEdge M420, M520, M620 Device Type: Network adapter Ports: Gigabit Ethernet x 4 Connectivity Technology: Wired Data Link Protocol: GigE Data Transfer Rate: 1 Gbps Network / Transport Protocol: iSCSI Features: DMA Coalescing (DMAC) Interfaces: 4 x Ethernet 1000 OS Required: Linux, Microsoft Windows XP, Microsoft Windows Server, Microsoft Windows 7, Microsoft Windows Vista, FreeBSD 8.0, VMware ESXi Min Operating Temperature: 32 °F Max Operating Temperature: 131 °F Designed For: Dell PowerEdge M420, M520, M620