Confidence model
| Level | Meaning |
|---|---|
| Calculated | Transparent arithmetic from entered values. |
| Declared fit | Public claims are consistent; real negotiation was not observed. |
| Needs verification | A required capability is missing, ambiguous, optional, or topology-dependent. |
| Measured | Not produced here; requires hardware or trusted system telemetry. |
Focused references
USB Power Delivery boundaries
3 A/5 A, cable marks, SPR/EPR, PPS, profiles, and dock power.
Open power reference →USB and DisplayPort link payloads
USB link labels and usable HBR/UHBR lane payloads.
Open payload reference →What PCIe tunneling over USB4 means
How PCIe devices cross a USB4 fabric, what requires explicit evidence, and why a link rate is not a throughput promise.
Read PCIe tunneling reference →Direction and feature chains
DP++, active/reverse conversion, HDR, VRR, HDCP, audio, and DSC.
Open conversion reference →Data pools, roles, and fallback
Separate port declarations, negotiated class, shared allocation, and measured throughput.
Open USB evidence reference →Routing, EDID, scaling, and eARC
Public evidence and conservative boundaries for switches, splitters, matrices, mixed displays, and audio paths.
Open HDMI routing reference →PoE Types, Classes, and power boundaries
IEEE Types 1–4, Classes 1–8, PSE versus PD power, negotiation, budgets, and passive-PoE limits.
Open PoE reference →Primary source families
- USB-IF — USB4 Protocol transport and dynamic sharing overview.
- USB-IF — USB Power Delivery Public charging and 240 W boundaries.
- USB-IF — Cables and Connectors Certified cable data and power marking.
- VESA — DisplayPort FAQ USB-C DP, adapters, MST, DSC, and verification.
- Microsoft Learn — USB4 connection manager Tunnel and bandwidth management.
- Apple Support — HDMI connections Exact adapter and end-to-end feature constraints.
- Ethernet Alliance — IEEE 802.3bt overview PoE Types, Classes, PSE power, and power available at the PD.
Corrections
Report an error with the page URL, result, exact product model, and public source to canghun13@naver.com.
Last reviewed: September 2, 2026.