A:AnswerThis Desktop PC has the L08660-800 - 180W power supply installed. This chassis can also use the L64961-800 - 310W power supply, and the connectors should be the same. I hope this helps you. You would still need to find a graphics card that would work with the 310w power supply. The laptop has 2 available PCI slots - Expansion slots 1 PCIe x1; 1 PCIe x16.
A:AnswerThanks for your interest in HP product! According to our datasheet, this HP Desktop does have two M.2 socket 3, key M (one for SSD card PCIe x4).