08-13-2019, 02:39 PM
(08-12-2019, 09:58 AM)thequux Wrote: 0.1W active, 0.04W idle, according to ARK . It's the same for the 2TB variant (which I got), and ARK is pretty definitive. Even has a link to the datasheet (which mostly repeats the same specs)
Active consumption quoted by vendors is usually averaged over some 'normal' use-case scenarios. The power rails still need to be able to supply the top draw of the device for short instances.
FWIW, I'm currently using a WD Blue SN500 NVMe with my RK3399 SBC, and though its average rating is sub-0.1W, its 'heavy-duty' is 2.7W, while its peak (as in absolute peak, sustained up to 10us) is 1.8A (x 3.3V = 5.9W). Keep in mind that's a very power-efficient model, top performers (Gen3 x4) can be rated up to 3A and then some.