Definition: A modern USB data transfer protocol that improves efficiency by supporting command queuing and parallel processing.
Explanation
USB Attached SCSI Protocol (UASP) is a USB data transfer protocol designed to enhance communication between a USB storage device and a computer. Unlike the older Bulk-Only Transport (BOT) protocol, which processes commands sequentially, UASP allows multiple commands to be handled simultaneously through command queuing and parallel command execution. This results in faster and more efficient data transfers, especially for high-speed USB drives and complex workloads.
Example
When copying large files to a USB flash drive that supports UASP, the transfer speed remains higher and more consistent compared to a drive using BOT. For instance, a UASP-enabled USB 3.0 drive can maintain speeds closer to its advertised maximum during sustained writes, while a BOT drive may slow down significantly after an initial burst.
Who This Is For
This protocol is particularly relevant for technology enthusiasts, IT professionals, and anyone using high-performance USB storage devices who wants to maximize data transfer speeds and efficiency.
Related Terms
Bulk-Only Transport, BOT, USB 3.0, NAND caching, USB flash drive performance
Also Known As
UASP