The StarTech PEXSAT34RH is a high-performance 4-port PCI Express 2.0 SATA III controller card designed for expanding your desktop or server's internal storage capabilities. Featuring four AHCI SATA III (6 Gbps) ports, it enables seamless connection for HDDs, SSDs, and optical drives via a PCIe x2 interface.

This controller card stands out with HyperDuo SSD auto-tiering technology, which smartly combines up to 3 SSDs and 1 HDD into a single logical volume. Frequently accessed data is automatically promoted to the faster SSD storage, enhancing system responsiveness and delivering up to 80% of SSD performance while maintaining the larger capacity of HDDs. HyperDuo works transparently in the background with BIOS compatibility.

Additionally, the card supports native hardware RAID levels 0, 1, and 10, providing options for performance optimization or data redundancy. With Port Multiplier (PM) support, the total number of connectable drives can expand to 7 by attaching multiple SATA drives to a single port.

Built around the Marvell 88SE9230 chipset, the PEXSAT34RH supports Native Command Queuing (NCQ) and is backward compatible with SATA I/II devices. It comes with both standard and low-profile mounting brackets for versatile chassis compatibility and complies with PCI Express 2.0 and Serial ATA 3.0 specifications.

Perfect for users seeking to upgrade or add RAID capabilities to existing systems, this StarTech controller enhances storage bandwidth and reliability with ease of configuration and installation.

Key Benefits:

• 4 x SATA III 6 Gbps ports via PCIe 2.0 x2


• HyperDuo SSD auto-tiering combining SSD speed with HDD capacity


• Hardware RAID support (RAID 0, 1, 10)


• Port Multiplier support for up to 7 drives


• Standard & low-profile brackets included


• Backward compatible with SATA I/II


• Native Command Queuing support