PowerColor's Radeon RX 6600 Fighter is dominated by the cooler's black plastic surface. Through the two fans, you can see the shiny metal of the heatsink. A backplate is not available.
Dimensions of the card are 20.0 x 11.0 cm, and it weighs 474 g.
Installation requires two slots in your system.
Display connectivity includes three standard DisplayPort 1.4 and one HDMI 2.1. Display and media capabilities are identical to the rest of the RDNA2 family.
The card has one 8-pin power input. This configuration is rated for up to 225 W of power draw.
The AMD Radeon RX 6600 series doesn't support multi-GPU.
PowerColor's thermal solution uses three heatpipes that make direct contact with the GPU surface. The thermal pads on the memory are 0.8 and 3.0 mm thick, and those on the VRM are 1.0 mm thick.
Once the main heatsink is removed, a small VRM heatsink becomes visible. It does get fairly warm, but thanks to the low power draw of the RX 6600, this isn't a problem at all.