MadShrimps posted a review on the Silicon Power Stream S06 4TB USB 3.0 HDD
A quote from the article:
The Stream S06 4TB variant from Silicon Power is incorporating drives from Seagate, and to be more exact the ST4000DM000 model, which is built to support the 6Gb/s SATA interface, with a spindle speed of 5900RPM. The drive is featuring four platters, 1TB each and comes with a power consumption of 7.5W in normal operation, IDLE of 5W, while the sleep mode would only require 0.75W.Silicon Power Stream S06 4TB USB 3.0 HDD Review @ Madshrimps