Lightware MMX4x2-HDMI-USB20-L 4x2 Matrix Switcher for HDMI video and USB 2.0 peripherals - 91310076 is backordered and will ship as soon as it is back in stock.
Shipping Availability*
Shipping Availability*
Free Ground Shipping on Most Orders Over $250.00
Looking for the best price or expert advice? Give us a call at 1-888-230-3661 or use the Live Chat below. Buying 1 or 100, you may qualify for greater savings beyond the advertised price.
Product Overview
The Lightware MMX4x2-HDMI-USB20-L is a 4x2 matrix switcher that routes HDMI video signals and USB 2.0 peripheral data independently across four inputs and two outputs. Designed for enterprise meeting rooms, training facilities, and collaborative workspaces, it allows presenters to share content from any source while simultaneously extending USB peripherals such as cameras, microphones, and interactive displays. The unit supports 4K UHD video at 60 Hz with HDCP 2.2 compliance, making it suitable for HDMI 2.0 signal environments. It is a strong fit for integrators specifying HDMI 4x2 matrix switcher with USB routing or USB-over-matrix for conference room AV systems.
Product Description
The MMX4x2-HDMI-USB20-L handles four HDMI sources and two displays while independently routing USB 2.0 data to connected peripherals — a combination that eliminates the need for a separate USB hub or KVM switch in most huddle and conference room deployments. Video and USB routing are managed independently, so a control system can direct the display to one source while a room PC accesses a USB webcam connected through a different path.

The unit is 1RU rack-mountable and provides RS-232, Ethernet, and front-panel control options. Lightware's LW3 protocol enables straightforward integration with AMX, Crestron, and other control platforms. The MMX4x2-HDMI-USB20-L is available at Creation Networks with expert pre-sales support.

Key Features
- 4x2 HDMI Matrix Routing — independently route any of four HDMI sources to either of two displays without signal conflict.
- Independent USB 2.0 Routing — direct USB peripheral traffic separately from video, supporting KVM-style workflows without a dedicated KVM switch.
- 4K UHD 60 Hz Support — handles full 4K60 signals with HDCP 2.2, maintaining signal integrity for high-resolution displays and digital signage.
- HDMI 2.0 Compliant — supports the full HDMI 2.0 feature set including 18 Gbps bandwidth and HDR metadata pass-through.
- LW3 Control Protocol — native Lightware protocol enables straightforward integration with Crestron, AMX, Extron, and custom control systems via TCP/IP or RS-232.
- 1RU Rack-Mount Form Factor — standard rack unit chassis fits cleanly into AV racks, equipment closets, and under-table enclosures.
- Front-Panel Control — onboard buttons allow manual switching without a control system, useful during commissioning or as a backup control method.
- EDID Management — configurable EDID handling prevents handshake failures when sources and displays have mismatched capability tables.
Typical Applications
- Conference room
- Boardroom
- Huddle room
- Training room
- Government space
Technical Specifications
| Specification | Detail |
|---|---|
| Model | MMX4x2-HDMI-USB20-L |
| Part Number | 91310076 |
| Video Inputs | 4 x HDMI 2.0 (Type A) |
| Video Outputs | 2 x HDMI 2.0 (Type A) |
| USB Ports | USB 2.0 Host and Device ports (independently routed) |
| Max Video Resolution | 4K UHD (3840x2160) @ 60 Hz |
| HDCP Compliance | HDCP 2.2 / 1.4 |
| Video Bandwidth | 18 Gbps per port |
| Control Interfaces | RS-232, Ethernet (TCP/IP), Front-panel buttons |
| Control Protocol | Lightware LW3 |
| Form Factor | 1RU rack-mount |
| Power | Internal power supply, IEC inlet |
Competitor Comparison
| Feature | Lightware MMX4x2-HDMI-USB20-L | Crestron HD-MD4X2-4KZ-E | Extron SW 2 HDMI 4K | Kramer VS-21H |
|---|---|---|---|---|
| Matrix Configuration | 4x2 true matrix | 4x2 true matrix | 2x1 switcher (not matrix) | 2x1 switcher (not matrix) |
| USB Routing | Independent USB 2.0 routing on matrix | USB-C with host switching | No USB routing | No USB routing |
| Max Resolution | 4K60 / 18 Gbps | 4K60 HDR | 4K60 | 4K60 |
| HDCP Support | HDCP 2.2 / 1.4 | HDCP 2.2 | HDCP 2.2 | HDCP 2.2 |
| Control Protocol | LW3 (TCP/IP, RS-232) | Crestron proprietary | SIS (RS-232, IP) | Kramer Protocol 3000 |
| Form Factor | 1RU rack-mount | 1RU rack-mount | Desktop/rack | Desktop |
| EDID Management | Full EDID control | Auto EDID | Basic EDID copy | Basic EDID |
Frequently Asked Questions
- Can the MMX4x2-HDMI-USB20-L route video and USB to different destinations independently?
- Yes. Video and USB routing are handled on separate matrices, so you can send video from Input 1 to Output 2 while routing USB from Input 3 to Output 1. This is the key differentiator from simpler KVM-style switchers.
- What control systems does it integrate with?
- The unit uses Lightware's LW3 protocol over TCP/IP and RS-232, which is natively supported by Crestron, AMX, Control4, and most other commercial control platforms. Lightware also provides driver modules for common control environments.
- Does it support HDCP 2.2 content?
- Yes. All inputs and outputs support HDCP 2.2 and are backward compatible with HDCP 1.4, ensuring protected 4K content from Blu-ray players, streaming devices, and corporate sources passes without issue.
- Is the unit rack-mountable?
- Yes. The MMX4x2-HDMI-USB20-L ships in a 1RU chassis designed for standard 19-inch equipment racks. Rack ears are included.
- What is the maximum cable distance for HDMI inputs?
- Standard passive HDMI cable performance applies. For 4K60 signals, cables up to approximately 3 meters are recommended; longer runs should use active HDMI cables or optical HDMI cables rated for 18 Gbps.
- Can it be controlled without a separate control system?
- Yes. The front-panel buttons allow manual source selection and routing changes, making it functional during setup, testing, or in installations where a full control system is not required.
- Where can I purchase the MMX4x2-HDMI-USB20-L?
- It is available from Creation Networks, an authorized Lightware reseller, with pre-sales engineering support included.
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
Creation Networks is a trusted nationwide partner for complete audiovisual solutions — delivering expert AV system sales, professional design, programming, installation, and ongoing support to organizations across the United States.
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.
CREATION NETWORKS — A PARTNER YOU CAN TRUST SINCE 2006











