here!
I’m your shopping assistant for PC builds, upgrades, and everything tech.
Got questions? Ask away!
Start a conversation
Best Sellers
Hot Seller- $583.21
- + FREE SHIPPING
Top Rated- $584.61
- + FREE SHIPPING
StarTech.com 3-Port HDBaseT Extender Kit with 3 Receivers - 1x3 HDMI over CAT5 Splitter - Up to 4K ST124HDBT
- Distribute your HDMI source to three remote displays over standard CAT5 CAT6 or CAT7 cable
- Works with HDMI video source devices like computers Blu-ray players & TV set top boxes
- Works with HDMI televisions monitors or projectors
- HDMI splitter / 4K digital signage distribution / HDMI extender / HDBaseT extender / 1x3 HDMI extender / Mountable HDMI over CAT6 extender / HDBaseT splitter
- Maintain UHD 4K at 115 ft. away and HD 1080p at 230 ft. away
- Kit includes transmitter & 3 receivers
+
+
Overview
Specs
Reviews
See all Q & A 
Any questions? Ask CelesteSM will help you find out quickly.
Try me now
Distribute your HDMI source to three remote displays over standard CAT5 CAT6 or CAT7 cable - Works with HDMI video source devices like computers Blu-ray players & TV set top boxes - Works with HDMI televisions monitors or projectors - HDMI splitter / 4K digital signage distribution / HDMI extender / HDBaseT extender / 1x3 HDMI extender / Mountable HDMI over CAT6 extender / HDBaseT splitter - Maintain UHD 4K at 115 feet away and HD 1080p at 230 ft. away - Kit includes transmitter & 3 receivers
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Limited Warranty period (parts): 2 years
- Limited Warranty period (labor): 2 years
- Read full details
Return Policies
- Return for refund until: January 31, 2027
- Return for replacement until: January 31, 2027
- This item is covered by Newegg.com's Extended Holiday Return Policy.
- Read full return policy for details.
We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2026 and December 31, 2026 you will have until January 31, 2027 to return your product.
Manufacturer Contact Info
- Manufacturer Product Page
- Manufacturer Website
- Support Phone: 1-800-265-1844
- Support Email: support@startech.com
- Support Website
- View other products from STARTECH
LOADING...
LOADING...
The StarTech.com ST124HDBT is an HDMI-over-HDBaseT extender kit that sends one source to three remote displays over CAT5e or better cabling, making it suitable for digital signage, classrooms, offices, and other multi-display installations. It supports 4K at up to 115 ft. or 1080p at up to 230 ft.
Recommended For
- Digital-signage operators in schools, hospitals, arenas, shopping centers, or retail spaces who need to send one HDMI source to three displays in separate locations over installed CAT5e-or-better cable.
- Bars, hotels, and restaurants that want to distribute the same entertainment source to TVs in multiple rooms or customer areas without running long HDMI cables.
- AV installers equipping offices, classrooms, or meeting spaces that need one source displayed locally and at up to three remote screens, with the transmitter and receivers mounted out of sight.
- Installers extending a shared 4K signal to nearby displays when 4K at up to 30 Hz is sufficient, or extending 1080p displays over longer cable runs up to the product’s stated 230-foot limit.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Distributing one HDMI source to three remote displays over CAT5e or better cabling, including 4K displays within 115 ft. or 1080p displays within 230 ft. |
| Video Distribution And Distance | 1 HDMI source to 3 remote HDMI displays; maximum extension distance is 230 ft. (70 m), including up to 115 ft. (35 m) for 4K |
| Resolution And Audio | Supports 4096 × 2160 (4K) at 30 Hz, 2560 × 1600 at 60 Hz, 1920 × 1200, 1920 × 1080, and 1280 × 720; supports Dolby TrueHD and DTS-HD MA audio |
| Cabling And Connectivity | HDMI input and output over Cat 5e UTP or better; CAT6 STP is recommended for protection against electromagnetic interference and cross-talk; 4 ports |
| Installation And Control | Rack-mountable; includes remote control capability |
| Power | AC adapter included; 100–240 V AC input, 24 V DC output, 1.5 A input current, 2.7 A output current, 64.8 W power consumption, positive center-tip polarity, 4-pin DIN plug |
| Dimensions And Weight | 2.76 × 10.31 × 11.38 in.; 3.53 lb. |
| Included Components | Transmitter, 3 receivers, universal power adapter (NA/EU/UK/AU), 4 IR blasters, 4 IR receivers, and quick start guide |
| Model Identifiers | StarTech.com ST124HDBT |