Supports SATA III 6Gbps bandwidth for accelerated data transfer, compatible with SSDs/HDDs, ideal for high-performance storage needs. NO-Support Raid. ^^ The 6 ports SATA controller base on ASMedia ASM1166 chip, more stable and wider compatible. Port Multiplier Command-based switching supported. ^^ Compliant with SATA 3.0 standards, backward compatible with SATA 1.0 and SATA 2.0. Support PCIe 1.0, 2.0, 3.0 protocol on motherboard PCIe X4, X8, X16 slot. NOT support hot swapping. ^^ Full height and low profile bracket included. ^^ Supports Windows 7/8/10, Windows Server 2008 R2/2012 R2/2016/2019, RHEL/CentOS 6/7/8, Debian 9/10/11, Ubuntu 16/18/20/21, SUES 11/12/15, FreeBSD 11/12/13, VMware ESXi 5/6/7.