Hello. Thanks for your help. So my pc is an HP Compaq dx2400 microtower and I just want to know if the msi radeon 7770 will fit in. Also another thing. Do you have a power supply that will fit and support the card? The card needs a 6-pin power connection. My current one is a 300W one so yeah. I have up to 50$ for the power supply so yeah, suggest something please. Thanks for your time.