4 Port SATA II PCI-X Controller Adapter Card *Mac OS X

Condition : Brand New with 1 year limited warranty  Compatible PowerMac : PowerMac G3/G4/G5 PCI-X Model , *except G4 Cube*compatible with G3 B&W , may compatible with PCI Graphics, AGP Graphics, Gigabit Ethernet(not test) Compatible OS X : Panther 10.3.5 to Leopard 10.5.8 (*10.4.6 or later is recommended, Max OS X versions 10.4.X and later have enhanced RAID capabilities) Native Support, NO Driver needed, Bootable Specification: - PCI-X 1.0a compliant 64-bit at 133/100 MHz bus speeds - Optimized support for Power Mac G5 PCI-X bus - SATA II compliant, with auto-negotiation per-port data transfer of 1.5 Gbits/sec and 3.0 Gbits/sec  -48-bit LBA supports smaller drives as well as drives larger than 137Gb - 4-port internal Serial ATA II interface connectors support up to 4 SATA I/II HDD/SSD - Fully compliant with Serial ATA 1.0a specification - Self-contained Macintosh booting functionality - Bus Mastering off-loads data I/O handling from CPU - Complete 32-bit CRC error checking,