Lenovo NetXtreme PCIe 1Gb 4-Port RJ45 Ethernet Adapter

A PCIe network adapter featuring four Gigabit Ethernet ports with RJ45 connectors, designed for server installations. The card supports full line-rate 10/100/1000 Mbps performance across all ports and uses PCI Express 2.0 for host connectivity. It's compatible with Cat 5e and Cat 6 cabling standards.

The adapter includes support for advanced networking features such as jumbo frames up to 9,600 bytes, IEEE 802.1q VLAN tagging, and I/O virtualisation for VMware NetQueue and Microsoft VMQ environments. Additional capabilities include TCP/IP and UDP checksum offloading, receive and transmit side scaling, and message signalled interrupts to reduce CPU overhead. The low-profile form factor suits deployment in ThinkSystem and System x server chassis.