A:Answer Not sure exactly the version but the manufacturer told me it is an Asrock z390, (the latest version, don't know if it's the pro tho). The Power supply is 650 watts (again according to the folks at IBuyPower). You can call the support line for them directly and they can look up the components using the Best Buy SKU number. Just got the machine and it is a really solid build! Waiting for Best Buy to approve my review before it's posted, outlining more info. Just got it on Monday. Tons of upgradeability. Specs page says only 2 Dimm slots but there are 4 (standard). Comes with two 8 gig DDR4 DIMMs. Also, it DOES have Bluetooth installed, which is listed as "No" on Best Buy specs page FYI. Very solid build, decent components for a pre-built machine and for the cost. Fun to try the Ray Tracing tech in the latest Battlefield 5 game on Ultra settings (RTX 2080). The machine is a beast for the price with liquid cooling ta boot. You won't be disappointed.