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, for all bits transmitted (command, data, and status), offers enhanced data protection for high-speed Serial ATA drives - Four independent data channels allows for separate device timings - Automatically identifies and configures drive types* - Automatically detects and supports devices utilizing many transfer modes including UltraDMA 6/5/43/2/1/0, PIO 4/3/2/1/0* - Provides performance and data protection: Supports native OS X RAID 0/1; third-party Mac OS X RAID support; S.M.A.R.T. technology -Support Hot Plugging on SATA II Port cable can be connected to the SATA hard drive or to the PCI host adapter  *Startup menu (pressing option key at boot) will only show at J3(Port 1) connection any questions about it, please ask before buy *Actual performance may vary based on hardware, software, and overall system configuration.