Received my BOLT V8 today (US tax day .) Inside the box there is the BOLT SBC in anti-static bag and is well protected by forms on all 4 sides. Added the 4GB DDR4 SODIMM (mine is 2133MHz type.) Try the 20V DC in jack (4.0mm x 2.9mm x 1.0mm center pin), only outer ring (negative) and inner ring (positive) are used by BOLT. Center signal pin (the 1mm one) is not used. This is the standard power supply plug found in some recent laptops. I use this one from eBay (search 183301986663 ), total cost is $11, shipping included. On USB-C based power supply: I tried my 45W PD battery pack (which can supply 20V 2.25A) but BOLT's USB-C won't activate it (it only want to talk to a 60W 20V 3A PD power source, not 45W.) I tried an AC-DC USB-C PD power supply used by recent Macbook Pro (known as Apple 61W, model number A1718) that will work as USB-C based power supply. I tried other AC-DC 45W PD (can do 20V 2.25A) power adapters but they will not work. I.e., 60W PD (20V 3A) is essential.