The combination of the fastest 3.5-inch storage solution and the Industry leading SCSI RAID controller technology, the NexStor 4000S Ultra320 SCSI PCI RAID delivers performance and protection to fit even the most constricted budgets. Designed for direct server connection, this Ultra320 SCSI solution is available in a 3.5-inch (2U) rackmount or deskside tower configuration. The NexStor 4000S PCI RAID solution offers scalability up to 7TB of storage is configurable in either Dual (standard) or Single (optional) bus mode, offering up to 640 MB/s data transfer rates. The 4000S is a JBOD (Just a Bunch Of Disks) with 12 of the fastest 10,000RPM or 15,000RPM disk drives per system.