The PERC 4e Dual Channel PCI Express Adapter Card provides excellent performance, data protection and scalability for SCSI RAID applications. It features a high-bandwidth x8 PCI-Express host interface and 128 MB Transportable Battery Backed cache. It features self-monitoring analysis and reporting technology (SMART) which detects predictable hard drive failures and also monitors the internal performance of all motors, heads, and drive electronics. This card offers two Ultra320 SCSI channels that can be used for internal connection to Dell PowerEdge servers.