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Product Details
The HD-MD402 is a 4K60 4:2:0 AV switcher that provides a cost-effective solution for professional AV applications. The HD-MD402 provides four HDMI® inputs, one mirrored HDMI and DM Lite® output, and one independent DM Lite output. The DM Lite outputs extend HDMI signals over a CATx (CAT5e or higher) twisted pair cable. For HD 1080p, WUXGA, and 2K signals, a CATx cable length of up to 230 ft (70 m) is supported. For UHD and 4K signals, a CATx cable length of up to 130 ft (40 m) is supported.
4K to 1080p Downscaling
The mirrored HDMI and DM Lite output and the independent DM Lite output each have a built-in scaler for downscaling 4K to 1080p signals. Input resolutions are automatically downscaled to 1080p regardless of the resolution capabilities of the display device. If desired, downscaling can be disabled. Input resolutions up to 4K60 4:2:0 are supported.
HDMI Audio De-embedding
Embedded HDMI 2-channel LPCM audio can be extracted from the selected HDMI input and transmitted to the AUX stereo audio output. Mute control is configurable for the mirrored HDMI and DM Lite output, the independent DM Lite output, and the AUX audio output independently. Volume control is only configurable for the AUX audio output.
USB Power Port
A USB power port is included on the HD-MD402 to power USB powered devices (500mA maximum).
NOTE: No USB data is passed through the USB power port. The port cannot be used to extend USB data, video, or audio signals.
Automatic Display Power
The COM (RS-232) port can enable the display device to be turned on or off automatically without the use of a control system. The port also enables full programmable control of any device with the use of a control system. (The COM port can be used for transmission of data only. No data will be received though the COM port.) An Ethernet port connection to a LAN also provides control by enabling use of the built-in web interface as well as connection to a control system.
Built-In Web Interface
Configuration of the HD-MD402 can be accomplished by using the built-in web interface. The configuration of a single unit can be downloaded to a computer or mobile device and then uploaded to multiple HD-MD402 units to simplify system installation.
.AV Framework™ Technology Support (Coming Soon)
In addition to a built-in web interface and control system programming, built-in .AV Framework technology of a Crestron control system can be used to configure and control the HD-MD402.
Surface-Mountable Design
The HD-MD402 can be installed using the included mounting hardware. The device can be mounted onto a wall or other flat surface.
Shipping & Return
Return Policy
You need to have a Return Authorization (RA) number before returning any products to HSSL Technologies.
For a hard copy of this form and a shipping label, please include your request in the form below.
You can also request an RA online by submitting an RA Request via email. Once you have provided HSSL Technologies with the appropriate information, we will contact you with an assigned RA number.
Defective or DOA Products
DOA or defective products are returned for REPLACEMENT ONLY with the same product/model. Deviations from this policy may result in a 20% Returns Processing Service Charge.
- Defective products must be in the original factory carton with all original packing materials.
- The Return Authorization number must be on the shipping label, not the carton. Please do not write on the carton.
- Returns must be shipped freight prepaid. Products received freight collect, without an RA number, or not approved for return will be refused.
- Return Authorization numbers are valid for fourteen (14) days only. Products returned after expiration will be refused.
- HSSL credits are based on the purchase price or current price, whichever is lower.
General Return Terms
You may return most new, unopened items within 30 days of delivery for a full refund. We will also pay return shipping costs if the return is a result of our error (e.g., you received an incorrect or defective item).
You should expect to receive your refund within approximately six weeks of giving your package to the return shipper. This period includes:
- 5–10 business days for us to receive your return from the shipper
- 3–5 business days for us to process your return
- 5–10 business days for your bank to process the refund
If you need to return an item, please Contact Us with your order number and product details. We will respond quickly with instructions for returning items from your order.
Shipping Policy
We can ship to virtually any address in the world. Note that there are restrictions on some products, and certain products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates based on the availability of your items and the shipping options you select. Depending on the provider, estimated shipping dates may appear on the shipping quotes page.
Please also note that shipping rates for many items are weight-based. The weight of each item can be found on its product detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Has my order shipped?
Click the "My Account" link at the top right hand side of our site to check your orders status.
How do I change quantities or cancel an item in my order?
Click the "My Account" link at the top right hand side of our site to view orders you have placed. Then click the "Change quantities / cancel orders" link to find and edit your order. Please note that once an order has begun processing or has shipped, the order is no longer editable.
How do I track my order?
Click the "My Account" link at the top right hand side of our site to track your order.
My order never arrived.
Click the "My Account" link at the top right hand side of our site to track your order status. Be sure that all of the items in your order have shipped already. If you order displays your Package Tracking Numbers, check with the shipper to confirm that your packages were delivered. If your packages each show a status of "delivered", please contact customer service for assistance.
An item is missing from my shipment.
Click the "My Account" link at the top right hand side of our site to track your order status. Be sure that all of the items in your order have shipped already. If you order displays your Package Tracking Numbers, check with the shipper to confirm that your packages were delivered. If your packages each show a status of "delivered", please contact customer service for assistance.
My product is missing parts.
Click the "My Account" link at the top right hand side of our site to track your order status. Be sure that all of the items in your order have shipped already. If you order displays your Package Tracking Numbers, check with the shipper to confirm that your packages were delivered. If your packages each show a status of "delivered", please contact customer service for assistance.
When will my backorder arrive?
Backordered items are those which our suppliers are unable to predict when they will have more in stock, but as soon as they do, we will be able to ship the item to you.
Warranty
Why Choose HSSL?
We connect businesses with the right technology solutions to power growth, security, and efficiency.

Expertise
Backed by years of industry knowledge, our specialists understand the challenges modern businesses face.

Partnerships
We collaborate with top-tier technology providers to bring you innovative & high-performance products.

End-to-End Support
Our dedicated support ensures your systems stay optimized, secure, and ready for what’s next.

Scalable Solutions
Our adaptive approach ensures your IT infrastructure evolves seamlessly as your business expands.
Expert in IT & Security Solutions
At HSSL, we specialize in delivering cutting-edge IT infrastructure, cloud, and cybersecurity services that empower businesses to thrive in a digital-first world. Our trusted professionals provide reliable insights on:
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Digital Transformation Strategy
Empowering businesses to adapt and grow through modern, secure, and scalable digital infrastructure.
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Advanced Cybersecurity
Protecting your organization from digital threats with proactive monitoring and smart security frameworks.
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Cloud & Infrastructure Management
Optimizing cloud performance and IT operations for seamless scalability and improved business agility.
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Data Backup & Recovery
Ensuring business continuity through secure data management, automated backups, and rapid recovery solutions.
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Network & Endpoint Solutions
Delivering secure, high-performance networking systems that keep your business connected and efficient.
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Technology Consulting
Guiding organizations toward smarter IT investments and solutions that align with their long-term goals.
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