U - Definitions
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U
U.2 SSD (formerly SFF-8639)
A U.2 SSD is a high-performance data storage device designed to support the Peripheral Component Interconnect Express (PCIe) interface using a small form factor (SFF) connector that is also compatible with standard Serial-Attached SCSI (SAS) and Serial Advanced Technology Attachment (SATA)-based spinning disks and solid-state drives (SSDs).
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unified storage (multiprotocol storage)
Unified storage -- sometimes called network unified storage or multiprotocol storage -- is a storage system that makes it possible to run and manage files and applications from a single device.
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USB flash drive
A USB flash drive -- also known as a stick, thumb or pen drive -- is a plug-and-play portable storage device that uses flash memory and can attach to a keychain.
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utility storage
Utility storage is a service model in which a provider makes storage capacity available to an individual, organization or business unit on a pay-per-use basis.