Ultra ATA133 1-Port + eSATA 1-Port + SATA 1-Port PCI Raid Card, VT6421A chipset , 1x eSATA (External), 1x Ultra ATA133 (Internal), 1x SATA x1 (Internal),VT6421A chipset, Support 2-SATA Ports and 1-Ultra ATA Port, RAID 0, 1, 0+1, JBOD Supported, PCI 32-Bit 33MHz Interface, Compliant with PCI Specification 2.2, Support PCI Bus-Master Access, Fully Plug & Play compatible, Totally software transparent with PATA & SATA,Parallel ATA Interface, Supports Ultra DMA Mode transfers up to Mode 6 timing, Transfer rate up to 133MB/s, 48-bit LBA mode for connecting HDD more than 137GByte, Supports PIO mode 4, 2, 1, Supports up to 4-PATA IDE drives,Serial ATA Interface, Supports Serial ATA 1.0 Specification,Transfer rate up to 1.5Gb/s, Supports up 2-SATA hard disk, All external SATA ports are eSATA compatible, RAID 0, 1, 0+1, JBOD Support