# Video Signal Converter Gefen EXT-HD-3G-C

**URL:** https://aio.lv/en/product--gefen-ext-hd-3g-c--3812582
**Data updated:** 2025-12-01 22:49 (EET)
**Category:** Video Switches & Splitters
**Manufacturer:** Gefen
**Manufacturer code:** EXT-HD-3G-C
**EAN:** 0888814797275
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 131.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 108.67 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--gefen-ext-hd-3g-c--3812582

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

The Gefen EXT-HD-3G-C is a versatile video signal converter that supports 1080p video modes. It features HDMI input and SDI output, making it ideal for professional video applications. With a compact design (74mm x 59mm x 30mm) and a 12V input voltage, it is easy to integrate into any setup. The grey finish adds a sleek look to your equipment.

## Long description

The Gefen EXT-HD-3G-C converts HDMI audio and video to 3G‑SDI and single-link HD‑SDI, supporting resolutions up to 1080p Full HD and audio formats up to 8-channel LPCM. The compact converter supports discovery, configuration and firmware updates via the Gefen Syner-G™ software suite, and offers multiple mounting options and a wide-range DC input with a locking power connector for reliable use in mobile or fixed A/V installations.
Advantages
The EXT-HD-3G-C provides reliable HDMI-to-SDI conversion with support for Full HD and multi-channel LPCM audio. Its small, lightweight enclosure includes an ISO standard 1/4-20 attachment thread and a detachable surface-mounting bracket, and it can also be held in place with double-sided Velcro®. The device features a locking power connector and flexible DC input circuitry, and integrates with Gefen Syner-G™ for EDID customization and firmware management.
Key specifications
Input: HDMI (locking HDMI cable included)
Output: 3G‑SDI and single-link HD‑SDI
Video support: up to 1080p Full HD
Audio support: up to 8 channels LPCM
Mounting: ISO 1/4-20 thread, detachable surface-mount bracket, Velcro® compatible
Power: 12 V DC supply included, locking power connector, wide DC input range
Management: USB Mini-B port compatible with Gefen Syner-G™ for EDID and firmware updates
HDCP: Not compatible with HDCP-encoded HDMI content
How to use
Mount the EXT-HD-3G-C using the 1/4-20 attachment thread, the included surface-mount bracket, or secure it with double-sided Velcro® where necessary. Set DIP switches to the required positions for your workflow. Connect the HDMI source to the HDMI input using the included locking HDMI cable, and connect an SDI cable from the converter output to the SDI display or downstream equipment. Attach the supplied 12 V DC power adapter to the locking power jack; pull back on the adapter’s plastic sleeve to disengage the lock when removing the plug. The power LED will glow blue when powered and the HDMI In LED will glow green when an active HDMI source is detected. Use the USB Mini-B port together with Gefen Syner-G™ software for EDID customization and firmware updates; see the user manual for detailed instructions.
Recommendations
Do not use the EXT-HD-3G-C with HDCP-protected HDMI sources; if the input is HDCP-encoded there will be no SDI output. For reliable operation in mobile setups, use the locking power connector and secure mounting options provided.

## Specifications

### Ports & interfaces

| Feature | Value |
|---|---|
| Host interface | HDMI |
| Output interface | SDI |

### Power

| Feature | Value |
|---|---|
| Input voltage | 12 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.15 kg |
| Height | 30 mm |
| Width | 74 mm |
| Depth | 59 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 5 - 90 |
| Storage temperature (T-T) | -20 - 85 |
| Operating temperature (T-T) | 0 - 50 |
| Storage relative humidity (H-H) | 0 - 95 |

### Features

| Feature | Value |
|---|---|
| Product colour | Grey |
| Supported video modes | 1080p |

## FAQ

### How much does the Video Signal Converter EXT-HD-3G-C cost, and is it available for purchase?

The price is 131.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 23.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Gefen products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Gefen service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/3812582/65765347_large.webp