Optimus Ascend SAS SSDs: Supporting Collaboration, Email and VDISandisk's Optimus Ascend(TM) SAS SSDs are ideal for supporting collaboration, email and messaging, financial transactions, on-line transaction processing (OLTP) databases and virtual desktop infrastructure (VDI). These workloads are characterized by a mix of reads and writes, as end-users access business services delivering these solutions, and then write new data. SanDisk Optimus Ascend 200GB 2.5in. Internal Solid State Drive is one of many Solid-State Drives available through Office Depot. Made by SanDisk.