Description
The ST-NEDB70SK HDMI KVM Extender is a professional 18Gbps HDMI extender that extends 4K UHD HDMI signals up to 70m over a single CAT6/6A cable. The ST-NEDB70SK HDMI KVM Extender supports USB KVM pass-through, EDID management, bi-directional PoC, HDR, Dolby Vision and HDMI 2.0b for reliable long-distance AV signal transmission in commercial and professional installations.
This Extender can be widely used in multi-media conference halls, TV teaching and large-screen displays.
The ST-NEDB70SK HDMI KVM Extender is engineered for professional AV installations that require stable 4K HDMI extension with USB KVM control. The ST-NEDB70SK HDMI KVM Extender delivers zero-latency 18Gbps transmission over a single CAT6/6A cable while supporting HDR, Dolby Vision, EDID management and bi-directional PoC for reliable operation.
The ST-NEDB70SK HDMI KVM Extender is ideal for conference rooms, classrooms, command centers, digital signage, control rooms and commercial AV systems. With advanced HDMI 2.0b technology, the ST-NEDB70SK HDMI KVM Extender ensures outstanding image quality, stable long-distance signal transmission and seamless USB keyboard and mouse control.
Choose the ST-NEDB70SK HDMI KVM Extender for dependable 4K UHD video extension, USB KVM pass-through and professional HDMI distribution. The ST-NEDB70SK HDMI KVM Extender combines high bandwidth, reliable performance and simple installation, making the ST-NEDB70SK HDMI KVM Extender the perfect solution for demanding commercial and enterprise environments.
Features
☆ HDCP 2.2 compliant
☆ Support 18Gbps video bandwidth
☆ Support video resolution up to 4K2K@60Hz RGB/YCbCr 4:4:4, as specified in HDMI 2.0b
☆ The transmission distance can be extended up to 230ft/70m via a single CAT6/6a cable
☆ Support HDR, HDR10, HDR10+, Dolby Vision, HLG
☆ Audio formats: LPCM 2.0/2.1/5.1/6.1/7.1, Dolby Digital, Dolby TrueHD, Dolby Digital Plus (DD+)
☆ Support 3.5mm analog audio de-embedding, audio is output through the L/R OUT port of the receiver
☆ EDID copy pass-through function between the source device and display device
☆ Support bi-directional POC (Power over Cable) function
☆ With USB KVM pass-through function, USB 1.1 compliant, support remote control by keyboard and mouse
☆ Compact design for easy and flexible installation
Package Contents
① 1× 18Gbps HDMI Extender (Transmitter)
② 1× 18Gbps HDMI Extender (Receiver)
③ 1× USB-A to USB-B Cable (1.5 meters)
④ 4× Mounting Ears
⑤ 8× Machine Screws (KM3*4)
⑥ 1× 12V/1A Locking Power Adapter
⑦ 1× User Manual
Specifications
| Technical | |
| HDMI Compliance | HDMI 2.0b |
| HDCP Compliance | HDCP 2.2 |
| Video Bandwidth | 18Gbps |
| Video Resolution | Up to 4K2K@60Hz RGB/YCbCr 4:4:4 |
| Color Depth | 8/10/12-bit |
| Color Space | RGB 4:4:4, YCbCr 4:4:4, YCbCr 4:2:2, YCbCr 4:2:0 |
| HDR | HDR, HDR10, HDR10+, Dolby Vision, HLG |
| Audio Formats | LPCM 2.0/2.1/5.1/6.1/7.1, Dolby Digital, Dolby TrueHD, Dolby Digital Plus (DD+) |
| ESD Protection | IEC 61000-4-2: ±8kV (Air-gap discharge) & ±4kV (Contact discharge) |
| Transmission | |
| Distance | 4K2K@60Hz 4:4:4 — 70m | 1080P — 70m (CAT6 cable) |
| Connection – Transmitter | |
| Input | 1× IN [HDMI Type A, 19-pin female] |
| Output | 1× OUT [HDMI Type A, 19-pin female] 1× CAT OUT [RJ45] |
| Control | 1× SERVICE [Micro-USB jack] 1× USB port [USB Type B] (PC/KVM) |
| Connection – Receiver | |
| Input | 1× CAT IN [RJ45] |
| Output | 1× OUT [HDMI Type A, 19-pin female] 1× L/R OUT [3.5mm Stereo Mini-jack] |
| Control | 1× SERVICE [Micro-USB jack] 2× USB port [USB Type A] (Keyboard & Mouse) |
| Power | |
| Power Supply | DC 12V/1A; supports bi-directional PoC function |
| Power Consumption | 4.2W (Max) |
| Mechanical | |
| Dimensions | 90mm (W) × 68mm (D) × 22mm (H) |
| Weight | Transmitter: 170g | Receiver: 169g |
| Housing | Metal Enclosure – Black |
| Environmental | |
| Operating Temperature | 0°C ~ 40°C / 32°F ~ 104°F |
| Storage Temperature | -20°C ~ 60°C / -4°F ~ 140°F |
| Operating Humidity | 20%~90% RH (non-condensing) |
| Storage Humidity | 10%~90% RH (non-condensing) |
Operation Controls and Functions
Transmitter Panel
| No. | Name | Function Description |
|---|---|---|
| 1 | SERVICE | Firmware update port. |
| 2 | OUT | HDMI signal loop output port, connected to HDMI display device with HDMI cable. |
| 3 | IN | HDMI signal input port, connected to HDMI source device with HDMI cable. |
| 4 | CAT OUT | RJ45 connector for connecting the CAT IN port of the Receiver with CAT6/6a cable. |
| 5 | Link Signal Indicator (Green) | On: Transmitter and Receiver are in good connection. Flashing: Transmitter and Receiver are in poor connection. Off: Transmitter and Receiver are not connected. |
| 6 | Data Signal Indicator (Yellow) | On: HDMI signal transmission with HDCP encryption. Flashing: HDMI signal transmission without HDCP encryption. Off: No HDMI signal transmission. |
| 7 | PC | Connect to PC. The computer can be accessed and controlled remotely through the USB port of the receiver (KVM function). |
| 8 | DC 12V | DC 12V/1A power input port. Supports PoC — only one unit (TX or RX) needs to be powered; the other does not require a power supply. |
| 9 | EDID DIP Switch | Use the DIP switch to set EDID (up = 1, down = 0): 11 — EDID copied from the display at the RX. 10 — EDID preset to 4K@60Hz 2.0CH. 01 — EDID preset to 1080p 2.0CH. 00 — EDID copied from the HDMI OUT at the TX. |
Receiver Panel
| No. | Name | Function Description |
|---|---|---|
| 1 | SERVICE | Firmware update port. |
| 2 | OUT | HDMI signal output port, connected to HDMI display device with HDMI cable. |
| 3 | L/R OUT | Analog audio output port, used for audio de-embedding output. |
| 4 | CAT IN | RJ45 connector for connecting the CAT OUT port of the Transmitter with CAT6/6a cable. |
| 5 | Link Signal Indicator (Green) | On: Transmitter and Receiver are in good connection. Flashing: Transmitter and Receiver are in poor connection. Off: Transmitter and Receiver are not connected. |
| 6 | Data Signal Indicator (Yellow) | On: HDMI signal transmission with HDCP encryption. Flashing: HDMI signal transmission without HDCP encryption. Off: No HDMI signal transmission. |
| 7 | Keyboard Port | Connect to the keyboard. |
| 8 | Mouse Port | Connect to the mouse. |
| 9 | DC 12V | DC 12V/1A power input port. Supports PoC — only one unit (TX or RX) needs to be powered; the other does not require a power supply. |
Application Example
