The PEXESAT32 2 Port PCI Express 6Gbps eSATA Controller Card offers simple connectivity between a host computer and eSATA 3.0 devices - a cost-effective solution for connecting high-speed storage, such as High RPM Hard Drives and Solid State Drives (SSD), which in turn allows for easier data backups and archiving.With full support for SATA 3.0 hard drives and data transfer speeds of up to 6 Gbps, the adapter card features a native PCI Express single chipset that provides enhanced compatibility, reliability and performance for external SATA 600 MB/s storage needs.The controller card is backward compatible with SATA 2.0 devices, providing the versatility to use older storage, and features support for RAID 0 and 1 modes as well as port multiplier capability with command-based and FIS-based switching for connecting multiple external hard drives to a host PC through a single external SATA connection.A dual profile solution, the eSATA controller card includes a low profile/half-height bracket for installation in slimline or small form factor computer cases.The StarTech.com AdvantageSupports SATA 3.0 data transfer speeds up to 6Gbps - twice the speed of SATA II (3Gbps) Ships with a full profile bracket installed and includes a low profile/half-height bracket that provides the option to install in a small form factor PC Specification - Warranty: Lifetime HARDWARE - Bus Type: PCI Express - Card Type: Standard Profile (LP bracket incl.) - Chipset ID: Marvell - 88SE9128 - Interface: eSATA - Ports: 2 PERFORMANCE - ATAPI Support: Yes - Bootable: Yes - LBA support: 48-bit - Maximum Data Transfer Rate: 6 Gbps - MTBF: 5,06,000 Hours - Number of Drives Supported Through Port Multiplier: 1 to 5 - Number of Ports That Support Port Multiplier: 2 (can only use 1 PM at a time) - Port Multiplier: Yes - RAID: Yes - Supported RAID Modes RAID 0 (Striped Disks) RAID 1 (Mirrored Disks) JBOD - (Just a Bunch of Disks) - Type and Rate: SATA III (6 Gbps) CONNECTOR(S) - Connector Type(s): 1 - PCI Express x1 Male - External Ports: 2 - eSATA (7 pin, Data) Plug SOFTWARE - Microsoft WHQL Certified: Yes - OS Compatibility: Windows XP, Vista, 7, 8, 8.1, 10 Windows Server 2003, 2008 R2, 2012, 2012 R2, 2016, 2019 Mac OS 10.6 to 10.15 Linux 3.5.x to 4.11.x LTS Versions only