Kramer EXT3-21-XR-TR 2x1 4K60 HDMI/USB Switcher Extender over HDBaseT 3.0
Kramer EXT3-21-XR-TR 2x1 4K60 HDMI/USB Switcher Extender over HDBaseT 3.0 is backordered and will ship as soon as it is back in stock.
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Kramer EXT3-21-XR-TR 2x1 4K60 HDMI/USB Switcher Extender over HDBas...
Product Overview
The Kramer EXT3-21-XR-TR is a 2x1 4K60 HDMI and USB switcher-extender set that transmits video, USB 2.0, RS-232, IR, and Ethernet over a single HDBaseT 3.0 cable at extended range. Designed for conference rooms and corporate meeting spaces, it enables two HDMI sources to be switched and extended to a remote display with full USB peripheral sharing for video conferencing. The transmitter and receiver pair supports Power over HDBaseT (PoH) and is well suited for BYOD and UC (Unified Communications) deployments.
Key Features
- 2x1 HDMI Switching — Selects between two HDMI sources at the transmitter for flexible source management.
- 4K60 HDBaseT 3.0 — Transmits 4K60 4:2:0 HDMI over a single Cat 6A cable at extended range via HDBaseT 3.0 technology.
- USB 2.0 Extension — Extends USB 2.0 for webcams, speakerphones, and other USB peripherals over the same Cat cable.
- RS-232 & IR Control — Bidirectional RS-232 and IR pass-through for display and system control.
- Ethernet Pass-Through — Network access at the display end without additional cabling.
- Power over HDBaseT (PoH) — Remote unit can be powered over the HDBaseT link from the transmitter.
Typical Applications
- Conference room 2-source BYOD video conferencing setups
- Corporate meeting room USB peripheral sharing
- Boardroom HDBaseT AV and UC integration
- Training room multi-source switching and extension
- Huddle room all-in-one AV and USB infrastructure
Technical Specifications
| Specification | Detail |
|---|---|
| Video Inputs | 2x HDMI (4K60 4:2:0) |
| Transmission | HDBaseT 3.0, single Cat 6A |
| USB | USB 2.0 extension |
| Control | RS-232 (bidirectional), IR, Ethernet |
| Power | Power over HDBaseT (PoH) |
Frequently Asked Questions
- Does the EXT3-21-XR-TR support 4K resolution?
- Yes. The unit supports 4K60 4:2:0 HDMI transmission over HDBaseT 3.0 at extended range over Cat 6A cabling.
- What USB devices are supported?
- The unit extends USB 2.0, which supports webcams, speakerphones, keyboards, mice, and other USB 2.0 HID and UVC devices commonly used in video conferencing.
- What is the maximum cable run distance?
- Distance depends on cable category and resolution. Refer to the Kramer product datasheet for exact distance specifications for 4K and 1080p operation.
- Is auto-switching supported?
- The EXT3-21-XR-TR supports manual and potentially auto-switching between the two HDMI inputs. Refer to product documentation for switching behavior configuration.
- What warranty applies?
- Kramer provides a 3-year limited warranty. Contact Creation Networks for support and warranty claims.
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
Nationwide Audiovisual Services, Design, Installation & Support
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From Microsoft Teams Rooms and enterprise video conferencing to LED video walls, live streaming production, and hybrid collaboration systems, we provide end-to-end AV integration using premium, certified technology from industry leaders including Crestron, Q-SYS, Shure, Extron, and Absen.
Whether you operate a single location or manage facilities nationwide, Creation Networks ensures your AV systems are designed for reliability, scalability, security, and long-term performance — helping your organization communicate more effectively and operate at peak efficiency.
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