So it is quad channel, ddr5-5600 x4 32-bit channels. But it's sort of a misnomer, as all ddr5 udimm/sodimm consist of 2 32-bit channels to keep SI clean. So it's still 128bits overall (same as ddr4) but organized differently and you can now have 128 banks open (4 channels x 2 tanks x 16 banks...