Can You Install Graphics Card in Lenovo ThinkCentre M70s?

The 2020 Lenovo ThinkCentre M70s supports the following discrete graphics cards:

• GT 730 - 2GB GDDR5
  1 x HDMI 1.4 1 x VGA

• 520 - 2GB GDDR5
  2 x DisplayPort 1.2
• RX 550X - 4GB GDDR5 
  1 x HDMI 2.0 1 x VGA 1 x DisplayPort 1.4

Here are the slots that available on the mainboard:

• 1 x PCIe 3.0 x16
  low-profie (length < 155mm, height < 68mm).
• 1 x PCIe 3.0 x1
  low-profie (length < 155mm, height < 68mm).
• 1 x M.2 2230 slot for WiFi and Bluetooth combo card.
• 1 x M.2 2242/2280 slot for PCIe solid-state drive.

Some graphics cards might need a powerful power supply, here are the power supply that might came with your PC:

• 180W
  80+ Bronze 85% Efficiency
• 260W
  80+ Bronze 85% Efficiency
• 310W
  80+ Platinum 92% Efficiency
• 380W
  80+ Platinum 92% Efficiency