For DESKTOP PCs with PCI EXPRESS slot. Adds 2 SATA ports for connecting 1 to 2 SATA peripherals, either internally on a SATA port or externally on an eSATA port. Can also be used to add two IDE peripherals (one port accepts a ribbon cable supporting two peripherals). This PCI-E 1x card (PCIe 1.0, PCIe 1.0/2.0/3.0 compatible) supports 2 SATA ports and one IDE (PATA) port. The SATA ports can be routed to either an internal SATA socket or an external eSATA socket via jumpers on the card. Accepts up to 4 peripherals in total, either individually or in RAID POSSIBLE RAID FUNCTIONS 0,1,0+1,JBOD PCI Express 1x Chipset JMICRON. Drivers included for WINDOWS 95, 98SE, Me, NT, 2000, XP, Vista, Seven, 8, 10, Linux, DOS. 2x SATA ports: 3Gbps bandwidth, maximum speed 300MB/s Supports Hot Plug NCQ compatible 1x IDE ports: One IDE socket supporting up to two IDE peripherals UDMA compatible up to UDMA6 !!!!