Model Name ARC-1680ix-12 I/O Processor Intel IOP348 1200MHz Host Bus Type PCIe x8 On-Board Cache One DDR2-533 Socket with Default 512MB, Upgrade to 4GB Driver Connector 1xSFF-8088 3xSFF-8087 Form Factor Full Height System Architecture Intel Dual Core 1200 MHz IOP348 I/O processor for RAID core and SAS microcode 512MB on-board DDR2-533 SDRAM with ECC protection (ARC-1680LP PCB1.0/1680i PCB 1.0/1680x PCB 2.0) 512MB on-board DDR2-533 SDRAM with ECC protection (ARC-/1680ix-8) One 240-pin DDR2-533 DIMM socket with default 512MB of SDRAM with ECC protection, upgrade to 4GB (ARC-1680ix-12/16/24) Support write-through or write-back cache Support 4 to 24 internal and 4 to 8 external SAS ports Multi-adapter support for large storage requirements BIOS boot support for greater fault tolerance BIOS PnP (plug and play) and BBS (BIOS boot specification) support Support extreme performance RAID 6 function NVRAM for RAID event & transaction log Redundant flash image for adapter availability Battery Backup Module ready (Option) RoHS Compliant RAID Features RAID level 0, 1, 10(1E), 3, 5, 6, 30, 50, 60, Single Disk or JBOD Multiple RAID selection Online array roaming Online RAID level/stripe size migration Online capacity expansion and RAID level migration simultaneously Online volume set growth Instant availability and background initialization Automatic drive insertion / removal detection and rebuilding Greater than 2TB per volume set (64-bit LBA support) Disk scrubbing/ array verify scheduling for automatic repair of all configured RAID sets Support spin down drives when not in use (MAID) Support NTP protocol synchronize RAID controller clock over the on board Ethernet port Disk Bus Interface 4/8/12/16/24 internal/SAS ports or 4/8 external SAS ports Up to (128) SAS or SATA II drives using SAS expanders Up to 3Gb/s per port Host Connectivity PCIe x8 lane width host interface Monitors/Indicators System status indication through global HDD activity/fault connector, individual fault connector, LCD/I2C connector and alarm buzzer SMTP support for email notification SNMP support for remote manager Enclosure management (SES2,SMP and SGPIO) ready RAID Management Field-upgradeable firmware in flash ROM In-Band Manager Hot key "boot-up" McBIOS RAID manager via M/B BIOS Web browser-based McRAID storage manager via ArcHttp proxy server utility Support Command Line Interface (CLI) API library for customer to write monitor utility Single Admin Portal (SAP) monitor utility Disk Stress Test (DST) utility for production Out-of-Band Manager Firmware-embedded web browser-based McRAID storage manager, SMTP manager and SNMP agent and Telnet function via Ethernet port API library for customer to write monitor utility Support Push Button and LCD display panel Operating System Windows 2000/XP/Server 2003/Vista Linux FreeBSD Novell Netware 6.5 Solaris 10 x86/x86_64 SCO Unixware 7.x.x Mac OS 10.4.x/10.5.x (EFI BIOS support) Environmental/Physical Mechanical Dimension: ARC-1680-i/1680LP/1680x: 69(H) x 168(L) mm ARC-1680ix-8: 69(H) x 210(L) mm ARC-1680ix-12/16/24: 98.4(H) x 237.5(L) mm