Mine didn't come with any keyboard or mouse as shown in the pictures, but I'm not making any fuss over it.  I ordered this one and an i3 version from the same vendor a day later, and the second one came today with the mouse and keyboard (new/unopened even!).  I'd have purchased either or both of them without a keyboard and mouse if it had been an option, since I have a couple extras laying around anyway.  (Why add more clutter if you're downsizing computers to make more space anyway? LOL)The system is as expected, the Windows was ready to use after a few updates.  Then I pulled that drive and replaced it with an SSD with Linux Mint 18 or 19 already installed on it.  It came up running first time, no changes needed.  I didn't move the little mounts from the original SSD over to the Mint SSD.  The compartment for the drive has mesh pieces on the side that keep it pretty firm in there, and there's no room for it to slide around much anyway, so I'll probably just leave the mounts on the original drive and swap drives in and out as needed without the hassle of moving the mounts around.System is quick and tiny, which was my main reason for purchasing -- clearing out midsized towers with 95w processors in them, replacing them with faster computers that take up 1/6 of the space and run cooler with 35w processors.Interestingly, the system happens to have USB booting before the internal drive in the boot order.  I had my old SSD on the USB port to get files off, and the next reboot sent me right into my old desktop, running from the SSD over USB!  That's good, because I'm using a Displayport to HDMI adapter to get a picture, and I don't see anything happen before the desktop appears.  (UPDATE: Got a proper 4K adapter cable, and now I see the bootup screens.  A 1080p cable wasn't enough for my QHD resolution monitor.)I think these 600 G1 and 800 G1 tiny systems are the best bang for the buck today, if you're looking to replace older hotter behemoth computers with tiny little nice newer ones.  I'm not a big fan of HP systems when it comes to the BIOS, but these get good reviews, so I'll give them a shot at being my daily drivers.