The Sun x8 Express Quad Gigabit Ethernet UTP Low Profile Adapter hosts four high-performance Gigabit interfaces in a single PCI-E slot to provide high bandwidth server-to-server and server-to-switch connections while conserving valuable PCI-E slots at a lower cost per port. It extends CPU and OS parallelism to networking with its support for Solaris Logical Domains (LDOMs), hardware-based flow classification and multiple Direct Memory Access (DMA) channels. By reducing CPU processing loads with packet parsing, hardware check sum generation and interrupt coalescing, the adapter can also help increase server efficiency and mitigate network congestion.Compliant with IEEE 802.3 standards, Sun x8 Express Quad Gigabit Ethernet Adapters can help protect investments in your existing infrastructure, applications and expertise while enabling you to upgrade portions of your network to higher network throughput. The interoperability can preserve your existing core wiring infrastructure and help enable a cost - effective and seamless migration to Gigabit Ethernet technology.Sun's Gigabit Ethernet Adapter can help improve network throughput as well as application performance through features that help you maximize the use of your network bandwidth and offload CPU resources. Using CPU thread affinity to bind a given flow to a specific CPU thread, it enables a one-to-one correlation of Rx and Tx packets across the same TCP connection. This can help avoid cross-calls and context switching to deliver greater performance while reducing the need for CPU resources to support I/O processing.