Ordered one from MST MEMORY SOLUTION INC. and arrived today. It does not have 16GB of Ram like advertised. It has 8GB. Will be returning.***Update: MST MEMORY SOULTION INC. went above and beyond to help resolve the issue. I decided to contact them because I had ordered this same machine from other vendors and they were beat up and malfunctioning. The one from MST was pristine and looked almost brand new, except it had 2x 4GB sticks and should have been 2x8GB. They promptly replied. Being a system builder myself, they allowed me to open the case without voiding warranty to physically inspect the RAM, Upon verification of the 4GB chips and a couple of messages later, they have agreed to send the proper RAM.Normally I would deduct a star or two because of this mistake, but because of their great customer service, I am bumping them and this particular machine back up to 5 stars.