StarTech.com SATA Controller - Serial ATA/600 - PCI Express 3.0 x4 - Plug-in Card - 4 Total SATA Port(s) - 4 SATA Port(s) Internal - PC, Mac, Linux - Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019, Windows Server 2022, Mac OS X 10.10 Yosemite Supported Operating System