A:Answer Unfortunately, the power supply that is included in this unit is a custom fit. A standard sized power supply will not fit this unit. Also note that the power supply included in this unit does not have an additional wiring harness/connector for a higher capacity graphics card, nor is there likely sufficient space in the chassis to accommodate the footprint that a bulkier graphics card requires. I do not know if HP or a third party makes a higher wattage power supply that might custom-fit this chassis; you'd need to check.
