One USB-C Cable at the Table for Video, USB Devices and 60W Charging

The problem

In a conference or huddle room, the display, camera and speakerphone almost never sit where the presenter sits. The screen is on the far wall, the camera is above or below it, and the table is metres away. To join a call on the room's equipment, a presenter has to find the right video adapter, a separate USB lead for the camera and speakerphone, and somewhere to plug in a charger. Each of those is a different cable pulled to the table, and each is a thing that goes missing or does not fit the next laptop.

Classrooms, lecture halls and training rooms add distance to the same problem. The lectern or instructor's position can be a long way from the projector or front display, and the document camera or microphone lives at the far end of the room, not at the plate. Running separate video and USB back to a rack over that distance is where signal integrity and cable count start to fight each other.

Boardrooms and consultation rooms want the opposite of complexity: a clean plate at the table, the electronics out of sight, and a way to bring the display up without a remote hunt. What integrators need is one connection at the table that does video, USB and power at once, and one cable back to the equipment.

What changes with this product

The WP-EXTHDTC100 is a US 2-gang wall-plate transmitter with a USB-C input and an HDMI input, paired with an HDBaseT 2.0 receiver at the display. It carries up to 100m (328 ft) over a single CAT6/6A cable. Both inputs handle up to 4K60 4:4:4 8-bit with HDCP 2.3, 18Gbps of video bandwidth and resolutions up to 4096x2160 at 60Hz, with HDR, HDR10, HDR10+, Dolby Vision and HLG pass-through.

The USB-C input runs DisplayPort 1.2a Alt Mode, so a laptop puts its picture, USB 2.0 and up to 60W of charging down one cable — the charging works when the wall plate is powered by its own 24V supply. USB 2.0 travels at up to 255Mbps over HDBaseT 2.0 to four device ports on the receiver, enough for a conference camera, a speakerphone, a keyboard, a mouse or a touch display. The receiver adds HDMI out and a balanced or unbalanced stereo audio output on a 5-pin Phoenix connector. A USB HOST port at the plate, bound to the HDMI input, gives an HDMI-connected room PC the same devices.

Switching is automatic, manual or priority; auto mode detects both signal and source 5V. Bidirectional IR and RS-232, CEC pass-through and a DISPLAY ON/OFF button at the plate let the room be run from the table or a control system. Bidirectional PoC means the one included 24V/5A supply can power either end and feed the other over the CAT cable.

Where it fits

Conference Rooms

A presenter plugs in one USB-C cable at the table. The laptop's picture goes to the display, the room's USB camera and speakerphone connect back to the laptop for the call over USB 2.0, and the laptop charges at up to 60W from the plate. Nothing else has to reach the table.

Huddle and Meeting Rooms

The HDMI and USB-C inputs sit side by side on the 2-gang plate, so a guest's laptop or the room PC connects without hunting for an adapter. Auto switching brings up whichever input has a live source; the front INPUT button switches by hand when someone wants to override it.

Classrooms and Lecture Halls

A lectern plate reaches a display or projector up to 100m away over one CAT6/6A cable. The room's USB document camera or microphone connects at the receiver end, near the front of the room, and feeds back to the source at the lectern over the same run.

Training Rooms

The instructor's laptop drives the front display and uses a USB keyboard, mouse or touch display at the receiver over USB 2.0. IR and RS-232 pass-through let the room's control system switch the display, and the DISPLAY ON/OFF button at the plate does the same from the table.

Boardrooms

A 2-gang plate with INPUT and DISPLAY ON/OFF buttons keeps the table simple for executives while the receiver and any control gear stay in the rack. One cable connects a laptop; one button brings the display up.

Telehealth and Consultation Rooms

One cable carries the clinician's laptop picture, the room camera and microphone over USB, and charging, so a call runs on the room's fixed equipment rather than on whatever the clinician carried in. The USB-C connection charges the laptop while the visit runs.

Typical setup

• Laptop connects to the wall-plate transmitter by USB-C for video, USB and up to 60W charging; an HDMI source can use the HDMI input instead.
• Wall-plate transmitter connects to the receiver over CAT6/6A, up to 100m (328 ft).
• Receiver HDMI OUT drives the display at 4K60 4:4:4.
• Receiver USB Device ports take the conference camera and the speakerphone over USB 2.0.
• Receiver AUDIO OUT (5-pin Phoenix) feeds an amplifier, balanced or unbalanced.
• Receiver RS-232 port connects to the room control system.
• Wall-plate USB HOST port connects to a room PC so it shares the receiver's USB devices when HDMI is selected.

What to check before you specify

The run is up to 100m (328 ft) over CAT6/6A. Wire both ends straight-through to the same pin order — the manual is explicit that this is not a cross-connect. HDBaseT 2.0 runs at 7.2Gbps between the units, while each input accepts up to 18Gbps of video bandwidth and carries up to 4K60 4:4:4 8-bit with HDCP 2.3.

The kit ships with one 24V/5A supply. Plan power draw for up to 111.8W with 60W USB-C charging when the supply is at the wall plate, or 41.74W without charging. Bidirectional PoC lets one supply power both ends over the CAT cable, but note that USB-C charging only works when the 24V supply is connected at the wall plate — if the plate is running on PoC from the receiver, video and USB work but the USB-C port does not charge.

The passive HDMI or USB-C lead into the plate is 3m (9.8 ft). Receiver USB device ports supply 5V/1A each.

Questions integrators ask

How far will the kit run over CAT6/6A?

Up to 100m (328 ft) over a single CAT6/6A cable, with all signals — video, USB 2.0, audio, IR, RS-232 and CEC — on that one run over HDBaseT 2.0.

Which resolutions and colour do the inputs carry?

Both the USB-C and HDMI inputs carry up to 4K60 4:4:4 8-bit with HDCP 2.3, up to 4096x2160 at 60Hz, with 18Gbps of video bandwidth and HDR, HDR10, HDR10+, Dolby Vision and HLG pass-through.

Can a room PC on the HDMI input use the receiver's USB devices?

Yes. The wall plate's USB HOST port (USB-B) is bound to the HDMI input, so a computer connected there by HDMI and USB gets the receiver's USB devices whenever HDMI is the selected input.

Does the laptop charge when the wall plate is powered over the cable?

No. USB-C charging needs the 24V/5A supply connected to the wall plate's DC IN. When the plate is powered over the cable from the receiver by PoC, video and USB still work, but the USB-C port does not charge.

How does input switching work?

Press the INPUT button to switch between HDMI and USB-C by hand; hold it for three seconds to turn auto switching on or off. Auto switching detects both the signal and the source's 5V, and a priority mode is available.

Where it sits in the line

• WP-EXTHDTC150 — Long-Reach 2×1 HDMI & USB-C HDBaseT Wall Plate Extender Kit, 4K60 4:4:4. Choose it when the run needs to go further than this kit.
• WP-EXTHDTC70 — 2×1 HDMI & USB-C HDBaseT Wall Plate Extender Kit with KVM. Choose it for a shorter run where KVM is the priority.
• WP-EXTHDTC50 — 2×1 HDMI & USB-C HDBaseT Wall Plate Extender Kit, 50 Meters. Choose it for a compact room within that reach.
• WP-EXTHDBTKIT — Single-Gang HDMI 2.0 HDBaseT Wall Plate Extender Kit with IR, RS-232 & PoC, 70M. Choose it when only an HDMI input is needed on a single-gang plate.
• WP-HDBASETX — 2-Gang HDMI & VGA HDBaseT Wall Plate Transmitter with Scaler, RS-232 & PoH. Choose it when a VGA input and a scaler are required.