4 - Photo gallery - ECS Atom 330 Dual Core P945GC (2)
Here you can spot the one DDR2 slot supporting up to DDR2-533. There are also 2 SATA II ports and 1 IDE supported by the ICH7. The power connector is the new(er) model 24 pin.
The mainboard has only one extra slot, PCI to be precise. Located behind it the ICH7 Southbridge .. and let's zoom in a little.
Indeed, two extra USB headers and actually a SPDIF header for digital audio. Quite lovely.