Features: Brand new and high quality Sil3114 SATA PCI Serial ATA Host Controller Card is designed to provide high-performance, low-cost, and reliable solutions for users who need to provide storage peripherals through the new Serial ATA interface. It can control four independent Serial ATA channels, each channel has its own Serial ATA bus and supports one Serial ATA device. Silicon Image SiI3114 SATA controller chip meets PCI specification revision 2.3, 32Bit, 33/66Mhz and meets Serial ATA 1.0 specification. Provides four independent channels, supports up to four Serial ATA devices, supports RAID0 (striping), RAID1 (mirroring), RAID5 (parity for RAID), for RAID 0 + 1 (mirroring + striping) and concatenation modes. When not in a RAID set, the hard disk operates normally and supports SATA up to 150MB/sec. For RAID function, supports RAID function 0 or 1, supports coexistence of RAID sets and non-RAID hard disks, and allows hard disks of different sizes to be configured for RAID sets. Operating System: for Windows 98SE / ME / NT4.0 / 2000 / XP / Vista / Win 7 32/64 bit. Pentium computer with available PCI slot. Specifications: Material: PCB + metal Chip: Silicon Image Sil3114 OEM: OEM available Weight: about 95g Note: Due to the lighting effects and shooting angles, there is a color difference in the product, please understand. Due to manual measurement, there is a tolerance in the product size. Package includes: 1x 4-port PCI to Sata Expansion Card