The ST521PMINT 1-to-5 SATA drive port multiplier lets you connect five individual SATA hard drives to a single SATA host controller, vastly increasing the storage capacity of your computer system. The ST521PMINT optimizes port usage enabling you to connect up to five SATA drives to a single SATA port. To ensure maximum performance the SATA port multiplier supports SATA III host controllers and hard drives, with transfer speeds up to 6 Gbps, so you can experience fast performance, even with 5 individual drives connected. For a hassle-free installation, you can mount the adapter into any new or legacy desktop expansion slot, including: PCI, AGP, and PCIe. To ensure compatibility with most computer cases, full-profile and low-profile mounting brackets are included. The HDD adapter also includes HDD activity LED headers, so you can connect your computer case LEDs to the card for full activity reporting. The ST521PMINT is backed by a StarTech.com 2-year warranty, and free lifetime technical support.