IO Crest SI-PEX40075 SATA III 2 Port eSATA III PCIe 2.0 X1 Raid Controller Card Chipset: Marvell 9170 Installed with a full profile bracket, Low profile included with the package Port Multiplier FIS-based and Command-based switching supported Supports SATA Rev 3.0 transfer speeds up to 6.0Gbps and backwards compatible with SATA I/II at 1.5/3.0Gbps Supports RAID 0 and 1 modes Supports Communication Speeds of 6.0Gbps, 3.0Gbps, and 1.5Gbps Supports Programmable Transmitter Signal Level Supports RAID Level 0/1 Supports AHCI 1.0 and IDE Programming Interface Supports Native Command Queuing (NCQ) Hot Plug and Hot Swap Supports Partial and Slumber Power management States Supports Port Multiplier FIS Based Switching or Command Based Switching