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This HDMI® over IP extender gives you the flexibility to locate digital signage displays where you need them. Using your local network to extend a 4K HDMI signal, you can seamlessly distribute video to multiple displays from multiple source devices, making it easy to position your displays, or create a video wall.
You can add additional receivers (sold separately) to distribute your HDMI signal to multiple locations. You can also create a video wall and combine your video source across multiple displays.
The IP receiver also features RS-232 extension which enables you to add a remote serial-operated device.
Versatile configuration options
In a point-to-multipoint setup, you can connect the HDMI over IP kit through a Gigabit LAN portal. You can also connect one or several sources (transmitters) to multiple displays (receivers) over your network, using a Gigabit Ethernet switch with IGMP.

For further scalability, you can combine up to 16 total extender kits. The extender also features a separate 3.5 mm audio source that enables you to switch between the native HDMI audio and a separate 3.5 mm audio source, so you can distribute a single audio source to multiple remote locations over IP.
For smaller-scale applications, you can use the extender kit as a point-to-point video extender by connecting the transmitter and receiver units directly over Cat5 or Cat6 cabling up to 330 feet (100 meters). In this configuration, two independent 3.5 mm audio source can also be extended to separate 3.5 mm speaker systems.
Ultra HD 4K resolution at 30Hz
This HDMI over IP kit delivers astonishing 4K UHD video to your remote 4K displays. With support for 4K, you can achieve an output resolution of up to 3840 x 2160p at 30Hz, which enables you to extend a 4K video source to multiple remote locations -- perfect for distribution throughout large buildings such as schools, hospitals, shopping centers or areas. The extender also works at lower resolutions such as 1080p or 720p.
Manage your video distribution from your mobile device
This HDMI distribution kit features an easy-to-use video control software app to manage your IP video distribution. The app is simple to set up, with automatic hardware detection, and lets you switch video sources for each remote display. You can also create and manage a video wall, for an impressive digital signage presentation.
The software is available on iOS for your iPhone or iPad, and Android™ for your smartphone or tablet.
Professional, cost-effective, simple installation
The HDMI over IP extender kit includes optional slot shelf mounting hardware for a tidy installation. Plus, because the extender uses standard non-proprietary CAT5e or CAT6 cable, it eliminates both the expense and hassle of running specialized cables.
Note: For best performance, a managed network switch with IGMP is recommended for more than one transmitter, or more than four receivers, Non-managed network switches will also limit the performance of other devices on your network. Support for Jumboframes must be enabled to distribute 4K video.
The ST12MHDLAN4K is This product is TAA compliant and backed by a Startech.com 2-year warranty with free lifetime technical support.
Applications
Distribute a separate 3.5 mm audio source and switch between that source and the native HDMI audio source
Build a multi-display video wall to present entertainment to your patrons with an impressive display at a restaurant or shopping center
Extend HDMI and RS-232 serial to create an interactive digital signage presentation
Display multiple communication boards showing dynamic data such as times and dates on digital charts in airports, train stations, bus stations or hospitals, that can be updated at any time
Present your social media feeds on multiple screens in a large viewing area
| Category | Attribute | Value |
|---|---|---|
| Warranty | Warranty Period | 2 Years |
| Connectors | Connector A | 1 - HDMI (19 pin), 1 - RJ-45, 2 - RJ-11, 4 - 3.5 mm Mini-Jack |
| Connector B | 1 - HDMI (19 pin), 1 - RJ-45, 2 - RJ-11, 4 - 3.5 mm Mini-Jack | |
| Environmental | Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Storage Temperature | -10°C to 60°C (14°F to 140°F) | |
| Humidity | 0% - 80 % | |
| Hardware | Ports | 1 |
| AV Input | HDMI | |
| Cabling | Cat 5e UTP or better | |
| Audio | Yes | |
| Rack-Mountable | No | |
| Daisy-Chain | Yes | |
| Indicators | LED Indicators | 1 - Link OK / POWER - Transmitter, 1 - Reset - Transmitter, 1 - Link OK / POWER - Receiver, 1 - Reset - Receiver |
| Packaging Information | Shipping Weight | 2.3 kg (5.1 lb) |
| Package Quantity | 1 | |
| Package Dimensions (L x W x H) | 36.9 cm x 23.9 cm x 7.9 cm (14.5 in x 9.4 in x 3.1 in) | |
| Performance | Max Distance | 100m (328ft) |
| Maximum Resolution | 4K @ 30Hz | |
| Supported Resolutions | 3840x2160 (4K) @ 30Hz, 2560x1600, 1920x1200 @ 60Hz, 1920x1080 (1080p), 1280x720 (720p) | |
| Audio Specifications | Wide Screen Supported | Yes |
| Physical Characteristics | Color | Black |
| Material | Aluminum | |
| Product Dimensions (L x W x H) | 13.0 cm x 11.7 cm x 3.0 cm (5.1 in x 4.6 in x 1.2 in) | |
| Weight | 0.6 kg (1.3 lb) | |
| Power | Power Source | AC Adapter Included |
| Input Voltage | 100 - 240 AC | |
| Output Voltage | 12V DC | |
| Output Current | 1.5 A | |
| Power Consumption | 18 W | |
| Special Notes | Note | The ST12MHDLAN4K will only work with ST12MHDLAN4R receivers. Requires IGMP snooping for router support. |
| What's in the Box | Included in Package | 1 - HDMI over IP transmitter, 1 - HDMI over IP receiver, 2 - universal power adapters (NA, EU, UK, ANZ), 2 - mounting bracket sets, 2 - CAT5e cables, 2 - RJ11 to RS232 adapters, 2 - RJ11 cables, 1 - plastic screwdriver, 1 - quick-start guide |
| Description | Downloads |
|---|---|
| Startech 4K TAA HDMI Over IP Extender Kit | ST12MHDLAN4K DataSheet | Downloads |
| Startech 4K TAA HDMI Over IP Extender Kit | ST12MHDLAN4K User Manual | Downloads |
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