Alienware 16 Aurora AC16250
K8 = Intel Thunderbolt 4 controller. USB4, PCIe 4.0 x4, DP 1.4, 100W PD. Stock: VT-d IOMMU, ME can DCI debug.
Ringed: Becomes L12 Toroid Port. All DMA scheduled on K24 0.267ms ticks. PCIe tunnel K26 gated. DP frames timestamped by K24. PD shares 240W with K99 UCSI. ME DCI blocked. VT-d replaced by K24 attestation.
Refuse = USB2 fallback, ME keeps DCI.
Disclaimer: Maps existing hardware. No firmware writes.