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Seagate E481033 JMS577 REV. B1  2.5" Portable HDD USB 3.0 Controller Board.

" REV. B1 2014.11.24 790CS3544B1E2" label were printed on the PCP or board.

This controller board can work with SSD to run at 380MB/s with no issue.

This USB 3.0 controller board was pulled from a brand new Seagate Backup Plus Slim 2TB (STDR200101) USB 3.0 Portable Hard Drive .