One Windows is simply not enough! Call US +1 877 734 6106 to find out Call UK 0800 027 2002 to find out 4 Port SATA II PCI Controller (RAID 0 or 1 or 0+1)   Specification SATA II RAID Controller Card, 4 Port Based on the Silicon Image SiI 3124-2 chipset, this 4 port SATA II RAID Controller is one of the fastest SATA controllers on the market! You get four RAID-ready internal Serial ATA II ports for your high performance SATA and SATA II hard drives. Whether you need Striping (RAID 0), Mirroring (RAID 1), or both (RAID 0+1), this card has you covered. The card also supports RAID 1+S (Mirrored-Sparing), which automatically replaces a failed hard drive and rebuilds the system if a booting hard drive fails. Provides improved performance over comparable SATA RAID controllers by offering a PCI-X/133 MHz host interface with bandwidth up to 1056 MB/s, which is twice as much as a common 64bit PCI interface. Plus, its four 3Gb/s SATA II ports can deliver drive throughputs of up to 300 MB/s each! Features: Silicon Image SiI 3124-2 chipset maximizes performance of Hitachi SATA 3Gb/s (300MB/sec) Hard Drives! Support up to 4 SATA drives Backward compatible with Serial ATA 150 (SATA I) devices Compliant with Serial ATA 1.0a specifications, revision 1.1 and Serial ATA II extensions to the Serial ATA 1.0a specification Four internal Serial ATA II RAID ports with data transfer up to 300 MBytes/sec PCI-X/133MHz host interface (supports PCI 32/64bit as well) Integrated PCI DMA engines Metal shielded Serial ATA connectors for extra durability Supports RAID 0 (striping), RAID 1(mirroring) and RAID 0+1 (striping & mirroring) for performance and reliability RAID 1+S (Mirrored-sparing) automatically replaces a failed hard drive and rebuilds the system when the booting hard drive has failed Operates as a non-RAID controller card when the system BIOS is not RAID configured Universal I/O bracket easily fits any low profile or full-sized system SATA II disk hot plug 48-bit LBA supports large capacity drives What's In the box: 4 Port SATA II RAID PCI-X/PCI card 1 standard height bracket 1 low profile bracket Software CD User guide 4 Port SATA II RAID Controller Specifications: 4 internal 7-pin SATA ports PCI-X /133 MHz (compatible with PCI 32/64 bit) Warranty: Lifetime Warranty System Requirements: Pentium III 700Mhz or faster desktop computer 128 MB RAM or more Available PCI-X slot or 32/64 bit PCI slot (PCI-X slot required for maximum performance) Operating Systems: Windows 2000 Windows XP Windows Server 2003 Windows NT 4.0