speed and flexible signaling Supports communication speeds of 6.0Gbps, 3.0Gbps, and 1.5Gbps. Supports programmable transmitter signal level for adaptable performance. Controller interface and compatibility Provides IDE programming interface registers for controllers. Supports AHCI programming interface registers for controllers. Supports Message Interrupt compliance with Serial ATA Specification 3.0. PCIe based expansion and performance Functional features: 2channel PCIExpress 2.0 supports a data transfer rate of up to 5.0/2.5 Gbps for PCIExpress. SATA device support and backwards compatibility Adopting PCIExpress 2.0 bus, this card supports SATA6Gbps devices that comply with the SATA3.0 specification, and is also backwards compatible withSATA 15Gbps and 3.0Gbps devices. Why you need it (benefits) Enables speed SATA connectivity on systems with PCI Express slots. Flexible speed support and programmable signaling to optimize for different drives. AHCI and IDE interface support provides broad compatibility with a wide range of controllers and drives. Backwards compatibility ensures existing SATA devices remain usable while enabling newer SATA6Gbps devices. Use scenarios Desktop upgrade: add a PCIExpress 2.0 card to connect SATA6Gbps SSDs for faster boot, load, and transfer times on an existing PC. Small networked storage: expand storage capacity for a home NAS or media server by attaching multiple SATA drives through the PCIe expansion card. Legacy integration: maintain compatibility with older SATA controllers and devices while enabling AHCI/IDE interface support for modern drives. Notes on compatibility and performance This card uses the PCIExpress 2.0 bus to support SATA6Gbps devices alongside backwardcompatible SATA interfaces (1.5Gbps/3.0Gbps and older specifications as noted). Designed to meet Serial ATA 3.0 requirements for interrupt and interface compliance, with programmable signal level options for optimized operation.