Key Benefits • Simple way to add or expand Gigabit Ethernet connectivity to any compatible computer • Supports gigabit speeds on common CAT-5 cabling—no need for costly cable replacement • Supports link aggregation with onboard Gigabit Ethernet ports • Full/half duplex • 1000/100/10BaseT auto-negotiation • Plug and play installation in Mac® computers • PCI Express (PCIe) x1 host bus interface Advanced Network Connection Whether you need to add a third Gigabit Ethernet port to your Mac Pro for improved performance, or step up to Gigabit Ethernet connectivity for your PC, get a Sonnet Presto™ Gigabit PCIe Pro Gigabit Ethernet adapter card for PCI Express for an advanced networking solution! This Sonnet card supports link aggregation(1) with your computer’s onboard Gigabit Ethernet ports and full duplex communication to achieve 2000 Mbps transfer rates—the ideal solution for high-bandwidth data transfer requirements. Presto Gigabit Ethernet PCIe Pro also supports 9000 byte jumbo packet transfers (compared to 1500 byte standard packets) to support higher performance and reduced overhead when transferring large files. Mac & PC Compatibility For complete Mac and PC compatibility list, visit product's webpage.