Quite the write-up on the iPower. I have a few of these, myself.
However, if you are *that* worried about electrical noise from HDDs, a network attached storage (NAS) device is the ultimate solution.
They are relatively cheap now, with large, redundant storage capacity that may be aggressively cached by internal M.2 SSDs that will provide lag-free performance for any application (though I haven't found the need to use SDD-caching for audio, which has trivial latency and bandwidth demands compared with video or database applications).
And by redundant, not only will it protect your local copy from physical disk failure(s), but will "scrub" volumes in the background to detect and correct from "bit-rot" (i.e. random bit errors from software and/or physical media failure). These units are a little more expensive - look at Drobo for an example.
A NAS will *completely* isolate your sensitive electronics from heat, vibration, and electrical noise, as well as allow you to locate your nerd equipment away from your elegant stereo system (the pictures of your setup are epic!
Ethernet, by design, is galvanically isolated to support massive concentration of ports in server farms without subsequent EMI/RFI from interfering with signal integrity (i.e. frequent retransmits from detected packet errors). If you still aren't convinced, and need to spend more money, you can also buy low-cost switches with SFPs to optically isolate the last segment from the switch to your BDP.
What do I use? I have a WD MyCloud EX2 Ultra (NAS) with a pair of 7200 rpm, 8TB disks in RAID 1 mode (mirrored), which are periodically backed-up to a direct attached Drobo RAID 5 array using software that enforces a CRC check on each sync, to detect bit errors on the source and copy.
The NAS is accessed via SMB 3 with wired Ethernet by a Mac Mini running Roon Server (1 Gigabit Ethernet), all located away from my audio gear
(see photo attached). The Mac Mini w/ Roon Server connects to my remote BDP-1 via a wireless bridge (Apple Airport Express), which is itself connected to the BDP via 100Mb wired Ethernet. This is another way to achieve isolation between the BDP-1 and the remaining devices on my network.
I have my BDP-1 connected to the wireless bridge via a 3 meter Ethernet cable, so the wireless bridge (which itself emits a fair amount of EMI/RFI) is far away from my audio gear.
I find that even with 192 kHz / 24-bit audio tracks (Roon uses my AIFF lossless iTunes library and playlists), the 100 Mb wireless connection to the BDP-1 is *plenty* fast for lag free playback (i.e. tracks start instantly when I click on the play button, without any stutter, even skipping around my library as fast as the Roon user interface will allow). The Bryston RAAT implementation on the BDP-1 is quite good, compared to other devices I have auditioned (which *do* struggle with lag-free playback).