Adaptec's family of zero-channel RAID (ZCR) cards offers the ideal solution for an affordable, flexible upgrade path to advanced RAID. This innovative approach reduces the cost of the RAID controller by eliminating the need for a SCSI chip on the controller.This "credit card sized" RAID card plugs into a specially designed small form factor PCI connector (an SO-DIMM connector attached to the PCI bus via Adaptec Embedded RAID Logic (EMRL) on Ultra320 motherboards. This unique design gives high-density servers advance RAID data protection and performance without sacrificing a PCI slot making it ideal for 1U applications. All Adaptec low-profile RAID controllers have a full-size bracket installed on the card. The kits contain a low-profile bracket for use in 1U systems.