Pi and ARM SBC - don’t get me started!. Oh all right 
Pi4 B :
Headless 4GB RAM model (booting off USB 3 Samsung T5 SSD) running Raspbian Buster (i.e. Debian 10 - 64 bit - arm64/aarch64) next to my WiFi Router / VDSL Modem - I used to run PiHole on it - but that stopped things like SBS On Demand (Australia “free” to watch streaming service) working - and - I used Brave everywhere so that takes care of ads anyway (sorry FOSS) - and it’s also effectively my Jumphost into my home network (I port forward a non-standard port from my router to the pi so I can SSH to it from the world intertubes) and I also run OpenVPN server on there.
Accessories :
- Argon Poly (black plastic) case
- Argon fan (Pi4 can get very hot!)
- Samsung T5 512 GB USB C SSD
Note - this “instance” of Buster arm64 started “life” on a 128 GB SD Card in a Pi3B - I swapped the SD Card out, and into the 4B and it just “worked” - I then “dumped” (using “dd”) that SD card image onto the Samsung T5 SSD and “grew it” - been running like that ~2 years?
Pi4 B :
Ubuntu 22.10 on 8 GB model, currently not using it, booting off 256 GB USB 3 stick.
Accessories :
- Argon Neo (aluminium) case
- Argon fan
- Samsung 256 GB USB 3 thumb drive (boot)
Pi4 B :
Kali Linux - when I can figure out how to make it boot from USB (or be arsed to restart my Kali self learning exercises).
Accessories :
- Argon Neo (aluminium) case
- PiJuice “hat” (as shown in FOSS article) - got some more batteries for it too (took forever to get here from Germany)
- Samsung 256 GB USB 3 thumb drive (boot)
Pi3 B :
Raspbian Stretch (9) - headless - it’s basically just a TV tuner over my network. I run TVHeadEnd on it and can tune into all the free to air TV stations in my city.
Accessories :
“Official” TV Hat (TV Tuner)
Pi3 B: (not currently in use - was planning to make it into a retro looking Mac Plus [I have a gutted case]).
Pi Zero W (x 2 - not currently in use) - was running a “headless” Kali on one of them. I’ve lost interest in Kali anyway…
Pi Zero 2 W (headless)
Note : the “2 W” is a game “changer” - it’s even 64 bit capable! It’s basically a P3B with half the RAM. I find 512 MB RAM more than adequate for a headless use case. I’m using mine as a “gadget” - i.e. all three of the “gadgets”, USB ethernet, USB storage, USB serial. Note - in Au, the Zero 2 W is very hard to get hold of - I had to pay extra to get in a kit with a bunch of accessories I didn’t need).
Accessories :
- Samsung 512 GB SD-Card
- Black plastic case (from Amazon)
I’ve got a bunch of “gadget” thingies for Pi Zero that convert the Pi into what looks like a big thumb drive - but not currently using them - plan is to convert the black plastic case so it can house the USB “hat” (note these have a USB Type A connector - like a thumb drive).
OKAY - so that takes care of Pi and stuff.
I’ve also got a bunch of other ARM SBC’s around the place
Orange P2+E
Running Armbian : with transmission Daemon server - that’s all it does, nothing else, downloads torrents to my NAS - no accessorized.
NextThing CHIP
I have 10. Hardly ever use them. They’re just as limiting as the Pi Zero (512 RAM single core). I also have a PocketCHIP, which I do use sometimes, it’s a neat “toy”. Also - they’re limited to Debian Jessie (I think there’s a way to hack them for Stretch and beyond but looks like a SHITLOAD of work for zero reward). One of the best things about CHIP? They had a CHARGING circuit for LIPO batteries! And a headless CHIP could run for HOURS on a smallish (1" x 1") LiPo! Pi Foundation have still NOT managed this!
Accessories (note NTC marketed their “hats” as “dips”, as in CHIP dip)
- VGA DIP (x1)
- HDMI DIP (x2)
- PocketCHIP chassis
Ideally - I’d like to be able to slot a more powerful SBC into the PocketCHIP chassis.
Pine 64
Not in use - Pine are UTTERLY USELESS, I stupidly bought two of them when they got advertised on Kickstarter as “world’s first $15 super computer” - MY ARSE! They were trying to cash in on NextThing’s (initial) success with CHIP, touted on Kickstarter as “world’s first $9 computer”. Pure utter garbage with UTTER garbage support.
Orange Pi ??? (forgotten what) - powered off in the bottom of a crate under a pile of other crates.
Banana Pi (the original circa 2014 / 15)
I was using it to take to work to keep my ResilioSync shares, at work, in sync with those at home. Like the CHIP, they also have a LiPo charging circuit on board, except you have to solder leads onto terminals on the board (and my soldering looks VERY ugly!). At the bottom of the same crate the extra Orange Pi calls “home”.
I’m going to plug my favourite Aussie store where I pretty much bought nearly ALL of my Pi Foundation stuff and other Pi accessories : Core Electronics just near my hometown of Newcastle, in the Hunter Valley, New South Wales :