FIELD GUIDESource-led reference
Port & Cable

StarTech.com / D209

StarTech DKT31CDHPD3

One native external display: HDMI and DisplayPort are alternative sockets.

Explore this device’s exact port groups →

Exact scope

DKT31CDHPD3 only; native USB-C DisplayPort Alt Mode, one display.

Selected documented host/display port groups only; not a complete physical inventory or hardware test. Counts and roles follow the named manufacturer source; no inferred chassis geometry.

Source checked · human review pending

Checked 2026-10-23 · Review due 2027-01-21
Sources S1256 · S1260

Inspect the evidence →

Same connector form, different documented roles

USB-C: Attached USB-C host cable — Upstream host · USB-C PD power input — Power input

Do not transfer a capability from one location to another merely because the connector outline matches.

Location and role matter

Selected port groups

4 groups · not an exhaustive parts diagram

Computer-generated illustration with prior AI visual review. Not a photograph, measurement or compatibility check. Independent technical and rights review pending.

× 1
Upstream host

Attached USB-C host cable

Host must supply DisplayPort Alt Mode for video; data and charging alone do not establish picture.

Sources S1256 · S1260 · Connector field note

Start a display plan →Start a data plan →

Seeds identity, connector and source link only. Task support is not inferred.

× 1
Video output

DisplayPort output

Alternative output for the one supported display.

Sources S1256 · S1260 · Connector field note

Identification only. This port group cannot launch the scoped planner.

× 1
Video output

HDMI output

Alternative output for the one supported display.

Sources S1256 · S1260 · Connector field note

Identification only. This port group cannot launch the scoped planner.

× 1
Power input

USB-C PD power input

100W maximum input; manufacturer reserves 15W and lists up to 85W host delivery; this power input is not a monitor output.

Sources S1256 · S1260 · Connector field note

Identification only. This port group cannot launch the scoped planner.

Read before using the profile

  • One native external display: HDMI and DisplayPort are alternative sockets.
  • Power budget is separate from video. Exact negotiated power, lane allocation and DSC support remain unmeasured or unspecified.

Exact-model source trail

Sources behind this profile

These are the profile’s existing source records, with their original scope and access limitations. No new inspection or approval is implied.

S1256Full source record →

StarTech.com · DKT31CDHPD3 Quick-Start Guide

One display, DP Alt Mode, USB data and 100W/85W PD split.

Open source ↗

Locator: pp.1–2: port roles, power and display connection
Access: public pdf text. Exact stated source scope only. No unperformed physical or platform test is implied.

S1260Full source record →

StarTech.com · DKT31CDHPD3 Datasheet

One-display dock, 15W reservation and85W host maximum.

Open source ↗

Locator: Special Notes; Power; Maximum Laptop Charging; Displays Supported
Access: public pdf text. Exact stated source scope only. No unperformed physical or platform test is implied.

Related field notes

USB Type-CThe shape is the beginning of the answer, not the end. →DisplayPort connectorDisplayPort 2.1 on a label does not promise the highest UHBR rate. →HDMI Type-AA full-size HDMI socket does not prove a particular HDMI feature set. →
Compare this deviceChoose a task playbook →

Exact-model evidence map

What this release can actually tell you about StarTech DKT31CDHPD3.

3 of 6 task domains contain some exact-model evidence. The others stay explicitly undocumented.

Open the full model map →
Displays & docksDomain profile

This release contains a dedicated displays & docks profile for this exact device.

Plan next step →Topology →
USB dataSelected-port evidence

The base device profile contains 2 selected port groups relevant to this domain, but no dedicated domain profile.

Plan next step →Topology →
Memory cards & readersNot documented here

No memory cards & readers-specific evidence for this exact model is represented in this release.

Plan next step →Topology →
Ethernet & PoENot documented here

No ethernet & poe-specific evidence for this exact model is represented in this release.

Plan next step →Topology →
AudioNot documented here

No audio-specific evidence for this exact model is represented in this release.

Plan next step →Topology →
Charging & powerSelected-port evidence

The base device profile contains 2 selected port groups relevant to this domain, but no dedicated domain profile.

Plan next step →Topology →

Derived from the existing device profile and domain catalogs. This layer adds no new hardware fact and does not infer compatibility from a missing or present cell.

Display connection desk

Multi-display evidence for this exact model

Shared output resources, host native limits and software-rendered paths remain distinct.

Display deskDock and displays worksheet

Dock / D209

StarTech DKT31CDHPD3

DKT31CDHPD3 only; native USB-C DisplayPort Alt Mode, one display.

  • DisplayPort outputNative display path · resource single-native
  • HDMI outputNative display path · resource single-native
Scope and limitations
  • One native display via HDMI or DisplayPort; both sockets share one documented display resource.
  • The 4K60 target retains exact host/link/input conditions; no unconditional simultaneous mode row is proposed.
Start with this dock →

Inspected 2026-10-23 · review due 2027-01-21. Independent technical review pending.

S1256 · S1260

Evidence behind this page

Scope first. Source second. Approval separate.

2 linked sources · 0 scoped claims · 0 sources with inspection/access flags.

Page scope: DKT31CDHPD3 only; native USB-C DisplayPort Alt Mode, one display.

Assessment 2026-10-23 · earliest scheduled source review 2027-01-21. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 2 source scopes, access limits and dates

S1256 · DKT31CDHPD3 Quick-Start Guide

StarTech.com · Manufacturer / product-owner domain · inspected 2026-10-23 · due 2027-01-21

Within inspection window

Scoped support: One display, DP Alt Mode, USB data and 100W/85W PD split.

Not established / limitations: Exact stated source scope only. No unperformed physical or platform test is implied.

Locator: pp.1–2: port roles, power and display connection

S1260 · DKT31CDHPD3 Datasheet

StarTech.com · Manufacturer / product-owner domain · inspected 2026-10-23 · due 2027-01-21

Within inspection window

Scoped support: One-display dock, 15W reservation and85W host maximum.

Not established / limitations: Exact stated source scope only. No unperformed physical or platform test is implied.

Locator: Special Notes; Power; Maximum Laptop Charging; Displays Supported

Trace 0 claims to their source records

No central claims on this surface. Exact-device assertions and explicit source links remain in the original profile above and in the reviewer packet.

Prepare this page for review →Read the evidence method →

Recorded evidence only. An inspection date, publisher label, source link or generated packet is not independent technical review, hardware testing, fabrication approval or a compatibility verdict.