SATA III (6 Gbit/s) - PCI Express 3.0 - PCIe x2 Slot - 4x SATA Ports - 2 Years. With this SATA III controller featuring 4 ports (6 Gbit/s), you can add four SATA 6 Gbit/s hard drives (HDDs) or solid-state drives (SSDs) to your computer system or server via an available PCIe x2 card slot. The card supports SATA III and PCI-Express 3.0 specifications. The ASM1164 provides 6 ports with 6 Gbit/s SATA performance. Equipped with the ASM1164 controller, this SATA card allows you to connect four high-performance 6 Gbit/s SATA drives with a combined total throughput of up to 8 Gbit/s. The SATA drives are connected via four individual SATA ports on the card (SATA cables sold separately). Extensive compatibility: The controller card is widely supported by all major operating system platforms, including Windows (7, 8, 10, 11), macOS (10.10 and higher), and Linux (2.6.32 and higher). The card also supports port multiplier.