Description
The ST-NEHB100HCU HDBaseT Extender is a professional 18Gbps HDMI/USB-C over HDBaseT 2.0 solution that extends uncompressed HDMI, USB-C, USB 2.0, RS-232 and bi-directional IR signals up to 100m (328ft) over a single CAT6A/7 cable. The ST-NEHB100HCU HDBaseT Extender supports 4K@60Hz 4:4:4 video, HDCP 2.3, EDID management, analog audio de-embedding and bi-directional POC for reliable long-distance AV distribution. The ST-NEHB100HCU HDBaseT Extender is ideal for conference rooms, classrooms, control rooms and professional AV installations.
The Extender offers the most convenient solution for video extension via a single CAT cable with long distance capability, and is the perfect solution for home/commercial application.
The ST-NEHB100HCU HDBaseT Extender delivers reliable HDMI, USB-C, USB 2.0, IR and RS-232 signal extension over long distances.
The ST-NEHB100HCU HDBaseT Extender provides stable 18Gbps HDMI and USB-C signal extension for professional AV environments.
Features
☆ Compliant with HDCP 2.3, 18Gbps video bandwidth
☆ HDBaseT 2.0 VS2010 chipset based design
☆ Support video resolution up to 4K2K@60Hz (YUV 4:4:4) as specified in HDMI 2.0b
☆ 4K60/4K30/1080P signal transmission distance up to 328ft/100m via a single CAT6A/7 cable (HDBT Standard Mode)
☆ 1080P 8bit signal transmission distance up to 492ft/150m via a single CAT6A/7 cable (HDBT Long Reach Mode)
☆ TX features 1x HDMI input, 1x USB-C input, 1x HDBT output, 1x USB 2.0 host and 3x USB 2.0 clients
☆ RX features 1x HDMI output, 2x USB 2.0 clients
☆ USB-C and HDMI signal inputs support auto or manual switching mode
☆ Auto switching supports HDMI 5V or signal detect selection
☆ USB-C supports DP-ALT mode for A/V, USB 2.0 data and power charging up to 60 watts
☆ TX/RX USB-A client ports VBUS on or off depends on whether USB host is connected
☆ HDR, HDR10, HDR10+, Dolby Vision LLM and HLG pass-through
☆ 4K to 1080p downscaling on HDMI output, no frame rate conversion
☆ Both TX and RX support analog audio de-embedding
☆ RS-232 signal pass-through and guest-mode control
☆ Support bi-directional IR signal pass-through, USB 2.0 signal transmission
☆ Advanced EDID management
☆ TX USB-A ports provide power up to 500mA; RX USB-A ports provide power up to 1000mA
☆ Support bi-directional 24V POC, with POC switch
Package Contents
① 1× 18Gbps HDMI/USB-C over HDBaseT 2.0 Extender (Transmitter)
② 1× 18Gbps HDMI Receiver
③ 1× IR Blaster Cable (1.5 meters)
④ 1× IR Wideband Receiver Cable (1.5 meters)
⑤ 2× 3pin-3.81mm Phoenix Connector (male)
⑥ 4× Mounting Ear
⑦ 8× Machine Screw (KM3*4)
⑧ 1× 24V/3.75A Desktop Power Supply
⑨ 1× User Manual
Every ST-NEHB100HCU HDBaseT Extender package includes the transmitter, receiver and required accessories for professional installation.
The ST-NEHB100HCU HDBaseT Extender supports 18Gbps bandwidth, 4K@60Hz video, HDCP 2.3 and USB-C connectivity.
The ST-NEHB100HCU HDBaseT Extender supports long-distance 4K video transmission, USB 2.0 data, IR control and RS-232 communication.
Specifications
| Technical | |
| HDCP Compliance | HDCP 2.3 |
| Video Bandwidth | 18Gbps |
| Video Resolution | Up to 4K@60Hz 4:4:4 |
| HDMI Compliance | HDMI 2.0b |
| Color Space | RGB, YCbCr 4:4:4, YCbCr 4:2:2, YCbCr 4:2:0 |
| Color Depth | 8/10/12-bit |
| Audio Formats (HDMI/USB-C/HDBT) | LPCM 2/5.1/7.1CH, Dolby Digital/Plus/EX, Dolby TrueHD, DTS, DTS-EX, DTS-96/24, DTS High Res, DTS-HD Master Audio, DSD |
| 3.5mm Analog Audio | LPCM 2CH |
| HDR | HDR, HDR10, HDR10+, Dolby Vision, HLG |
| USB Compliance | USB 2.0 |
| ESD Protection | IEC 61000-4-2: ±8kV (Air-gap discharge) & ±4kV (Contact discharge) |
| IR Level | 12Vp-p |
| IR Frequency | Wideband 20K–60KHz |
| Transmission Distance | |
| HDBT Standard Mode (4K60/4K30/1080P) | 328ft / 100m (CAT6A/7) |
| HDBT Long Reach Mode (1080P 8bit) | 492ft / 150m (CAT6A/7) |
| Connection – Transmitter | |
| Input | 1× HDMI IN [Type A, 19-pin female] 1× USB-C IN [USB Type C, 24-pin female] |
| Output | 1× HDBaseT OUT [RJ45, 8-pin female] 1× L/R OUT [3.5mm Stereo Mini-jack] |
| Control | 1× IR IN [3.5mm Stereo Mini-jack] 1× IR OUT [3.5mm Stereo Mini-jack] 1× RS-232 [3pin-3.81mm phoenix connector] 1× SERVICE [Micro USB, 5-pin female] 1× USB HOST [USB Type B, 4-pin female] 3× USB Devices [USB Type A, 4-pin female] |
| Connection – Receiver | |
| Input | 1× HDBaseT IN [RJ45, 8-pin female] |
| Output | 1× HDMI OUT [Type A, 19-pin female] 1× L/R OUT [3.5mm Stereo Mini-jack] |
| Control | 1× IR IN [3.5mm Stereo Mini-jack] 1× IR OUT [3.5mm Stereo Mini-jack] 1× RS-232 [3pin-3.81mm phoenix connector] 1× SERVICE [Micro USB, 5-pin female] 2× USB Devices [USB Type A, 4-pin female] |
| Power | |
| Power Supply | Input: AC 100–240V 50/60Hz Output: DC 24V/3.75A (US/EU standard, CE/FCC/UL certified) |
| Power Consumption (Max) | 97.92W (Power supply from TX, 60W USB-C charging, POC to RX) 16.08W (Power supply from TX or RX, without USB-C charging) |
| Mechanical | |
| Dimensions | Transmitter: 170mm [W] × 102mm [D] × 22mm [H] Receiver: 144mm [W] × 78mm [D] × 23mm [H] |
| Weight | Transmitter: 491g; Receiver: 334g |
| Housing | Metal Enclosure |
| Color | Black |
| Environmental | |
| Operating Temperature | 32–104°F / 0–40°C |
| Storage Temperature | -4–140°F / -20–60°C |
| Relative Humidity | 20–90% RH (non-condensing) |
| Recommended HDMI Cable Length | |
| HDMI IN / OUT | 26ft / 8m |
| 4K60 | — |
| 4K24 | 39ft / 12m |
| 1080P60 | 50ft / 15m |
Operation Controls and Functions
Transmitter Panel

| No. | Name | Function Description |
|---|---|---|
| 1 | Power LED | Red LED indicates that the transmitter is powered on. |
| 2 | LINK LED (Green) | Light on: Transmitter and receiver are in good connection status. Light flashing: Transmitter and receiver are in poor connection status. Light off: Transmitter and receiver are not connected. |
| 3 | USB-C LED (Green) | When the USB-C IN port is selected as the video signal input channel, the USB-C LED will be on. |
| 4 | HDMI LED (Green) | When the HDMI IN port is selected as the video signal input channel, the HDMI LED will be on. |
| 5 | SELECT button | Press this button to switch HDMI/USB-C signal input. |
| 6 | MODE switch | Used to switch HDBT mode. STD: HDBT Standard Mode (factory default) — extends 4K60/4K30/1080P signal up to 100m via a single CAT6A/7 cable. LRM: HDBT Long Reach Mode — extends 1080P 8bit signal up to 150m via a single CAT6A/7 cable. Note: In Long Reach Mode, due to bandwidth limitations, USB cannot transmit USB 2.0 devices and can only transmit USB HID devices (such as mice and keyboards). The serial baud rate may also be limited. |
| 7 | EDID DIP switch | Used for EDID setting: 00 — Copy display's EDID (factory default) 01 — 4K30 4:4:4 10 — 1080p60 4:4:4 11 — 1200p60 4:4:4 |
| 8 | USB Device ports | Three USB extension ports, connected to mouse, keyboard, USB Flash Drive or other USB devices, with a maximum power supply of 5V/500mA. |
| 9 | SERVICE | Firmware update and API commands control port. |
| 10 | HDBaseT OUT | HDBaseT signal output port, connected to the HDBaseT IN port of receiver with a CAT6A/7 cable. Used for various signals pass-through. |
| 11 | Data Signal Indicator (Yellow) | Light on: Video signal transmission with HDCP encryption. Light flashing: Video signal transmission without HDCP encryption. Light off: No video signal transmission. |
| 12 | Link Signal Indicator (Green) | Light on: Transmitter and receiver are in good connection status. Light flashing: Transmitter and receiver are in poor connection status. Light off: Transmitter and receiver are not connected. |
| 13 | HDMI IN | HDMI signal input port, connected to HDMI source device. |
| 14 | USB HOST | USB host port, connected to PC. It follows the HDMI IN port. When the HDMI IN port is selected as the input channel, the USB 2.0 signal can only be output through the USB HOST port. |
| 15 | USB-C port | USB Type C port with the following three functions: (1) USB-C video signal input port, connected to source device. (2) USB-C host port. When the USB-C port is selected as the video signal input channel, the USB-C port can be used as a USB 2.0 signal transmission port simultaneously. (3) USB-C charging port. Only when TX is connected to the 24V/3.75A power supply, the USB-C port provides 60W charging power for external USB-C devices. When TX is not connected to the power supply and RX is, the USB-C port cannot provide charging. |
| 16 | L/R OUT | Analog audio output port, used for audio de-embedding output. |
| 17 | IR IN | IR signal input port, connected with the IR Receiver cable. |
| 18 | IR OUT | IR signal output port, connected with the IR Blaster cable. |
| 19 | RS-232 | RS-232 serial port, used for RS-232 commands pass-through and API commands control. |
| 20 | DC 24V | DC 24V/3.75A power supply input port. Note: The extender supports POC function — either the Transmitter or Receiver can be powered by the 24V/3.75A adapter; the other unit does not require a separate power supply. |
| 21 | POC switch | Use the switch to turn on/off the POC function. |
Receiver Panel

| No. | Name | Function Description |
|---|---|---|
| 1 | Power LED | Red LED indicates that the receiver is powered on. |
| 2 | LINK LED (Green) | Light on: Transmitter and receiver are in good connection status. Light flashing: Transmitter and receiver are in poor connection status. Light off: Transmitter and receiver are not connected. |
| 3 | IR IN | IR signal input port, connected with the IR Receiver cable. |
| 4 | IR OUT | IR signal output port, connected with the IR Blaster cable. |
| 5 | SERVICE | Firmware update and API commands control port. |
| 6 | HDBaseT IN | HDBaseT signal input port, connected to the HDBaseT OUT port of transmitter with a CAT6A/7 cable. Used for various signals pass-through. |
| 7 | Data Signal Indicator (Yellow) | Light on: Video signal transmission with HDCP encryption. Light flashing: Video signal transmission without HDCP encryption. Light off: No video signal transmission. |
| 8 | Link Signal Indicator (Green) | Light on: Transmitter and receiver are in good connection status. Light flashing: Transmitter and receiver are in poor connection status. Light off: Transmitter and receiver are not connected. |
| 9 | HDMI OUT | HDMI signal output port, connected to HDMI display device, such as TV or monitor. |
| 10 | USB Device ports | Two USB extension ports, connected to mouse, keyboard, USB Flash Drive or other USB devices, with a maximum power supply of 1000mA. |
| 11 | L/R OUT | Analog audio output port, used for audio de-embedding output. |
| 12 | RS-232 | RS-232 serial port, used for RS-232 commands pass-through and API commands control. |
| 13 | DC 24V | DC 24V power supply input port. Note: The extender supports POC function — either the Transmitter or Receiver can be powered by the 24V adapter; the other unit does not require a separate power supply. |
| 14 | POC switch | Use the switch to turn on/off the POC function. |
The ST-NEHB100HCU HDBaseT Extender is built for reliable HDMI/USB-C distribution in meeting rooms, classrooms and control rooms.
IR Pin Definition
IR Receiver and Blaster pin definition as below:

The ST-NEHB100HCU HDBaseT Extender is suitable for meeting rooms, classrooms, control rooms and commercial AV systems.
Application Example










