Sonnet Tempo SATA Pro 6Gb 2-Port Storage Controller - Plug-In Card Components Other TSATA6-PRO-E2 Cost-effective solution for adding two high-performance 6 Gbps eSATA ports to your Mac Pro, desktop PC, or server with PCI Express 2.0 slots Supports single SATA drive enclosures and multi-bay SATA drive enclosures Superior performance with data transfers up to 375 Mbps Perfect for use in Sonnet's Echo Express Thunderbolt Expansion Chassis for PCIe cards Supports Sonnet-exclusive locking eSATA data cables