We tested the peak power consumption of a NAS at the wall during a run of CrystalDiskMark 5.0.2 as this version of the benchmark runs the read and write benchmark suites separately so its easier to monitor what power the device is using during each function.
With a CPU having a TDP of just 5W and a pair of disks using just 3.3W each when actively reading and writing and just 2.3W when idle, the ioSafe 216 was always going to be quite frugal with its power demands.
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