The ATTO ExpressPCI UL5D Low-Profile Ultra320 SCSI host adapter is the industry's first low-profile PCIe SCSI host adapter. Utilizing Ultra320 SCSI and next-generation PCI Express (PCIe) technology. With throughput of up to 320 MB/sec. per channel for a combined speed of up to 640 MB/sec., the ATTO ExpressPCI UL5D Low-Profile SCSI host adapter is ideal for integration into enclosures where space is at a premium.Easy to deploy, manage and scale, the UL5D Low-Profile host adapter is the ideal solution for data-intensive environments such as 10-bit high definition video, transactional database applications, email servers and large server farms.