Express Power Center. Fibre Channel and SCSI RAID software Utility. Atto Express Power Center is a disk storage software striping utility that supplies you with the power to maximize attached storage when using ATTO Celerity Fibre Channel and ExpressPCI SCSI host adapters. Vital for audio/video, digital content creation, large-scale database and other high-performance applications, ATTO Express Power Center incorporates exclusive Smooth Data Optimization (SDO) technology to transfer data reliably at a blazing fast pace when working in a Microsoft Windows environment.