I had pretty low expectations for this device.  I ordered it as a fill-in replacement for a model that I had on order from another well-known industrial computer provider that had been delayed due to motherboard shortages.  I was time constrained on this deployment and the KingDel was one of the only fanless computers with an I7 ready to ship.It came in on time and I immediately set to reloading it with Ubuntu 20.4.  I didn’t care about the Windows Pro it came with, I just washed it away anyway.  I started a “Stress –cpu 8 –io 4” command on it and let it run overnight to gauge whether or not it would survive running at full speed and temp for more than a few hours.The following morning (about 15 hours later) the fins were HOT to the touch.  Not unexpected and I didn’t take the exact temperature, but I’d gauge they were in the 40-50° Celsius range but it was still running fine.  So, I proceeded to provision it for my deployment.NetNet, everything about it worked OK within the parameters I required.  It ran and didn’t crash.  A problem which I’ve had with other Industrial fanless computers that I spun up and ran hot right out of the box.However, as I was getting ready to deploy, I realized that it didn’t boot on power on.  Which IMHO, is pretty standard for any industrial computer.  There was nothing in the BIOS (I checked, re-checked and re-checked again) and there wasn’t anything in the way of documentation for this device either included or on the web.  Someone had asked about Boot on Power Up in the questions section on the Amazon web site, but nothing specific in the answers other than “yes it can with a jumper”.So I was getting ready to call it a day, pack it up and return it.  Since it was already late in the afternoon, I whipped an email off to the KingDel folks asking about the ability to Boot on Power UP.  I had pretty low expectations about getting a response knowing it was probably coming from China.  If I got a response by morning, great, if not, then I’d just return it and wait on my original supplier.Low and behold, a few hours later at 3am US time (~3pm China Time), I received a response from KingDel with the Exact instructions and pics on how to jumper the motherboard for Boot at PowerOn.  Nice work KingDel, someone was ACTUALLY listening and working.Now the problem was, since the unit didn’t come with any spare 2.4mm jumpers (and for some strange reason I didn’t have SINGLE ONE left lying around), I either had to order a bag of them from Amazon with another two day turn around, or I had to get in the car and drive over to MicroCenter (since Fry’s is now Kaput).  After snarfing around MicroCenter for an hour with literally ZERO help from the folks working there, I found the last bag of 2.4mm jumpers hanging over by the Raspberry Pi / Arduino build area.With jumpers in hand, I returned to finish my testing, I jumpered the motherboard and it worked as advertised, Boot on PowerOn.  So I boxed it up, and shipped it for deployment.Since this IS an industrial fanless computer I would have expected that something as basic as the $.05 jumper for a critical function would been included in the box along with a tech note about SPECIFICALLY where it went for this feature since it wasn’t in the BIOS.For the lack of including a 2.44mm jumper and no instructions outside of emailing China, I’ve deducted 2 stars.  It shouldn’t be that hard.