Explain UASP USB 3.0
What is UASP?
UASP (USB Attached SCSI Protocol) is a more efficient software protocol than traditionally used by USB devices. UASP reduces latency, significantly increasing transfer speeds and reducing processor usage to utilize the full potential of SATA III hard drives over a USB 3.0 connection.
What is needed to use UASP?
You need the USB Hardware in both the PC's motherboard and the External disk drive to support UASP, and you need software drivers in Windows. Microsoft have already supplied UASP USB 3.0 drivers in Windows 8 and 8.1, so UASP works automatically. Windows 7 users can get USB 3.0 drivers from their motherboard manufacturer if they know the motherboard supports UASP.
ASUS have been the leading pioneer of UASP, and all their motherboards over the last few years have UASP support.
The Fantec external disk enclosures we sell now have UASP support.
What speed boost can UASP provide?
We have tested a 2TB and 4TB Seagate SATA-III disk drive in a Fantec USB 3.0 enclosure, both with and without UASP support. The performance graphs are shown below.
