Why Choose HKE12MM-L25

Overview

Point-to-point and many-to-many connection diagrams showing up to 32 transmitters and 32 receivers.

01

Point-to-Point or Many-to-Many, Up to 32 TX and 32 RX

Connect one transmitter to one receiver, or connect multiple transmitters and receivers through a network switch. Supports up to 32 transmitters (TX) and 32 receivers (RX).

Two display modes: one source full screen or four source images in PAP Quad View.

02

Full-Screen Focus or Four-Way Split View


Focus on one source in full-screen mode, or see four sources at once in a four-way split view (PAP).

Upgraded HDMI USB KVM extender with enhanced keyboard and mouse compatibility across 393 ft (120 m).

03

Better Keyboard and Mouse Compatibility at 393 ft

Control your computer from up to 393 ft (120 m) away. The upgraded HDMI USB KVM extender improves compatibility with your keyboard and mouse.

Specifications & Support

Compatibility & Input Guide

Source DevicesConnect a PC or other HDMI source to the transmitter HDMI input. Connect the source computer to the transmitter USB Type-B port with a USB Type-A to Type-B cable when keyboard and mouse control is required.Receiver Display and PeripheralsConnect the receiver HDMI output to an HDMI display. Connect a USB keyboard and mouse to the receiver, and connect speakers or headphones to the receiver 3.5 mm stereo output when audio is needed.Extension LinkUse Cat5e or higher UTP/FTP Ethernet cable. A direct TX-to-RX link or supported copper network link can extend video and USB control up to 120 m (394 ft). For multi-unit routing, connect transmitters and receivers through an Ethernet switch or router on the same reachable local network.Network and AddressingThe system supports point-to-point, point-to-multipoint and multipoint-to-multipoint deployment. Assign each transmitter a unique communication ID from 1 to 32. A DHCP server is required for automatic IP-address assignment. Multiple receivers may select the same transmitter, but simultaneous keyboard and mouse input should be managed to avoid conflicting control.Compatibility and LimitsMaximum video output is 1920 × 1080 at 60 Hz with HDCP 1.4; 4K output is not supported. Keyboard and Mouse Cross-Control in Quad-Screen mode is compatible with Windows, macOS and Ubuntu. Cross-control requires a working USB host connection between every controlled computer and its transmitter.

Technical Specifications

System Type: HDMI KVM extender; point-to-point, point-to-multipoint and multipoint-to-multipointComputer / Source Input: 1 × HDMI input and 1 × USB Type-B host connection per transmitterReceiver Display Output: 1 × HDMI output per receiverMaximum Resolution: 1920 × 1080 at 60 HzHDCP: HDCP 1.4Extension Medium: Cat5e or higher UTP/FTP Ethernet cableMaximum Distance: Up to 120 m (394 ft) per supported copper linkSystem Scale: Up to 32 transmitters and 32 receivers on the same local networkDisplay Modes: Single-Screen and Quad-Screen (PAP)Keyboard & Mouse: 2 × receiver USB ports; cross-control across four source segments in Quad-Screen modeAudio: 1 × 3.5 mm stereo output on the receiver; one active source at a time in Quad-Screen modeNetwork: Ethernet switch or router supported; DHCP client for automatic IP assignmentPower: Compatible PoE-enabled switch or supplied local power adaptersSwitching Methods: Receiver front-panel buttons, OSD menu and keyboard hotkeysOperating Systems for Cross-Control: Windows, macOS and Ubuntu

Manuals & Downloads

Included in the Box

  • 1 × HKE12MM-L25 TX+RX

  • 2 × 12 V DC Power Adapters

  • 1 × User Manual

Compare your options

Choose models from the menus to compare host connections, distance, display output and installation requirements.

Explore all extenders

Model

HKE12MM-L25

Model

HKE10SS-E25

Model

HKE10SS-PD25

Host connection

HDMI + USB per transmitter

Host connection

HDMI + USB

Host connection

USB 3.2 Gen 1 or faster USB-A host

Display outputs

1 × HDMI per receiver

Display outputs

1 × HDMI

Display outputs

2 × HDMI

Video output

1080p60

Video output

4K30

Video output

Dual 4K60

Extension medium

Cat5e or higher UTP / FTP

Extension medium

23AWG Cat6 or higher S/FTP

Extension medium

23AWG Cat6a or higher S/FTP

Maximum distance

120m / 394ft per supported copper link

Maximum distance

100m / 328ft

Maximum distance

100m / 328ft

Connection topology

Point-to-point or networked; up to 32 TX + 32 RX

Connection topology

Direct point-to-point

Connection topology

Direct point-to-point

Remote USB

Keyboard and mouse; Quad-Screen cross-control

Remote USB

USB 2.0 / up to 480Mbps

Remote USB

USB 3.2 Gen 1 / 5Gbps

Software requirements

Hardware video connection

Software requirements

Hardware video connection

Software requirements

DisplayLink driver required

Power

Compatible PoE switch or local power adapters

Power

Single-end DC 12V power at TX or RX

Power

2 × DC 12V adapters

Installation requirements

Ethernet switch / router supported; Single-Screen or Quad-Screen

Installation requirements

One continuous shielded cable; no Ethernet switch or router

Installation requirements

Direct TX–RX link; macOS HDCP video has DisplayLink limitations

FAQ's

Visit our Help Center for more answers.

[Compatibility] What source devices, displays and operating systems can I use with HKE12MM-L25?

Connect a PC or other HDMI source to each transmitter and an HDMI display to each receiver. Maximum output is 1920 × 1080 at 60 Hz with HDCP 1.4. Keyboard and Mouse Cross-Control is compatible with Windows, macOS and Ubuntu when each computer has a working USB connection to its transmitter.

[Compatibility] What network cable should I use, and what is the maximum distance?

Use Cat5e or higher-grade UTP/FTP Ethernet cable. Keep each supported copper link within 120 m (394 ft). For long or electrically noisy runs, use high-quality Cat6 or Cat6a cable with correctly terminated connectors and avoid damaged cables, unnecessary couplers and routing beside high-voltage power lines.

[Compatibility] What Ethernet switch or router should I use?

Use reliable Ethernet infrastructure with enough ports and capacity for all connected transmitters and receivers. For larger installations, the existing FAQ recommends a managed Gigabit switch with IGMP snooping and a dedicated VLAN. Confirm port speed, VLAN membership, DHCP service, multicast policies and PoE power budget with the network administrator before deployment.

[Compatibility] Does HKE12MM-L25 support 4K video?

No. The maximum supported format is 1920 × 1080 at 60 Hz with HDCP 1.4. Actual performance also depends on the source, display, HDMI cables, Ethernet link and network equipment.

[Features & Connections] What network topologies does HKE12MM-L25 support?

It supports point-to-point, point-to-multipoint and multipoint-to-multipoint installations. One transmitter can feed multiple receivers, and multiple uniquely identified transmitters and receivers can share the same local network. The system supports up to 32 transmitters and 32 receivers.

[Features & Connections] What is the difference between Single-Screen and Quad-Screen modes?

Single-Screen mode displays one selected transmitter source across the entire receiver display. Quad-Screen mode, labeled PAP in the OSD, displays four transmitter sources at the same time in four quadrants.

[Features & Connections] How does Keyboard and Mouse Cross-Control work?

In Quad-Screen mode, one keyboard and mouse connected to the receiver can control the four computers shown on screen. Move the cursor across a quadrant boundary to transfer control to the computer in the next segment. No additional cross-control software is required, but every controlled computer must be connected to its transmitter by USB.

[Features & Connections] Do I need the power adapters when using PoE?

No. A transmitter or receiver receiving stable power from a compatible PoE-enabled switch port does not need its local power adapter. If PoE is unavailable or the switch power budget is insufficient, use the supplied adapter for that unit. Do not use an incompatible passive PoE injector.

[Features & Connections] How does audio work in Quad-Screen mode?

The receiver 3.5 mm stereo output plays audio from one displayed source at a time. The OSD identifies the active audio quadrant. Select the required quadrant with the receiver controls or supported hotkeys, and make sure the source sends audio through HDMI.

[Features & Connections] How do communication IDs and DHCP work?

Assign each transmitter a unique communication ID from 1 to 32. In Single-Screen mode, select that ID on the receiver; in Quad-Screen mode, assign one transmitter ID to each quadrant. Each unit also has an IP address, and its DHCP client can obtain one automatically from a network with an active DHCP server.

[Setup & Switching] How do I connect a basic transmitter and receiver pair?

Connect the computer to the transmitter with HDMI and USB Type-A to Type-B, connect the transmitter and receiver directly with Cat5e or higher cable or through the planned network switch, and connect the receiver to the HDMI display, keyboard, mouse and optional audio device. Power both units by compatible PoE or their supplied adapters, then set the receiver to the transmitter communication ID. HDMI, USB host and Ethernet cables are not listed in the package.

[Setup & Switching] How should I assign communication IDs in a multi-unit system?

Give every transmitter a different ID from 1 to 32. Do not assign the same ID to two transmitters on the same network. Multiple receivers may select the same transmitter when one source needs to be distributed to several locations, but simultaneous keyboard and mouse input should be managed to avoid conflicting control.

[Setup & Switching] How do I switch sources and audio with the receiver buttons?

In Single-Screen mode, use Up and Down to change the selected transmitter ID. In Quad-Screen mode, use the audio-selection control to cycle through the four quadrants, then use Up to change the transmitter ID assigned to the selected quadrant. Press MENU to open the OSD, navigate its options and confirm selections.

[Setup & Switching] Which keyboard hotkeys are supported?

Press Right Ctrl twice within two seconds, then enter the command within three seconds. Use M to switch between Single-Screen and Quad-Screen modes. Enter a one- or two-digit transmitter ID from 1 to 32 to select a source. In Quad-Screen mode, use Up Arrow for the next quadrant or Down Arrow for the previous quadrant, then enter the required transmitter ID.

Frequently asked question

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