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Before you believe a bad review about us

We would like to respond openly to every negative review about us. Many are posted anonymously, so we cannot reach those customers directly. This open letter is our reply, and we would be grateful if you took a moment to read it.

But here is what a one-star review will never tell you:

  • We import from 70+ official distributors. That is why you pay far less than local retail — and why delivery takes longer. We publish the date before you pay, never after.
  • You can pay only when your goods land in Johannesburg. Pay on Arrival, no full payment up front. Ask yourself what scammer offers that.
  • Nobody has ever lost money with us. You get the product, or you get a refund. There is no third option, and there never has been.
  • We are part of the ITwork group — ten years trading in Europe, nine stores, thousands of positive reviews.
  • Johannesburg and Cape Town stores open this year — real shelves, real stock, walk in and buy the same day.

We are not satisfied with our review scores, and we are not going to fix them by hiding anything. We are fixing them by being faster, clearer and easier to reach than any reason to complain.

Read the full letter — photos and video of real shipments, and a straight answer to every accusation.

Problem with an order right now? Write to [email protected], [email protected] or [email protected] — answered the same business day. The letter also lists our group and store owners' contacts.
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Gefen HDMI to 3G-SDI Converter - Video Converter

Gefen HDMI to 3G-SDI Converter - Video Converter
Gefen HDMI to 3G-SDI Converter - Video Converter
0 reviews • Write a review
R5,156
+R19 Reward
The Gefen EXT-HD-3G-C HDMI to 3G-SDI Converter is a professional-grade video converter that transforms HDMI signals into broadcast-quality 3G-SDI output. Ideal for integrating consumer HDMI sources into professional SDI environments, this converter supports resolutions up to 1080p Full HD and ensure... Read More
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Stock 9 Code 3071411 Brand GEFEN Model EXT-HD-3G-C Warranty 2 Years

Shipping & Returns

Estimated delivery Tuesday, October 6
You will be kept updated through our detailed tracking system
Payment options
EFTPayFastBank CardSnapScanZapperGoogle PayApple PayMobicredMoreTymePay on Arrival

The Gefen EXT-HD-3G-C HDMI to 3G-SDI Converter is a professional-grade video converter that transforms HDMI signals into broadcast-quality 3G-SDI output. Ideal for integrating consumer HDMI sources into professional SDI environments, this converter supports resolutions up to 1080p Full HD and ensures reliable signal transmission over long distances.

Advantages

This converter offers seamless conversion from HDMI to SDI, supporting embedded audio up to 8 channels. With automatic cable equalization, it maintains signal integrity over extended cable runs. The metal enclosure provides durability, and the included mounting brackets allow for flexible installation. HDCP pass-through ensures compatibility with protected content.

Suitable for

  • Broadcast and production studios requiring SDI integration
  • Digital signage and AV installations
  • Live event production and video conferencing
  • Educational and corporate AV systems

Key specifications

  • Input: 1 x HDMI Type A (19-pin female)
  • Output: 2 x BNC (3G-SDI), 75 Ohm
  • Supported SDI Standards: SMPTE 259M, 292M, 424M
  • SDI Data Rates: 270 Mb/s, 1.485 Gb/s, 2.97 Gb/s
  • Audio: Embedded HDMI audio to SDI (up to 8 channels)
  • HDCP: Yes (pass-through)
  • Power: 5V DC via locking connector, 5W max
  • Control: DIP switches
  • Housing: Metal enclosure, surface mountable
  • LED Indicators: Power, Input Lock, Output Lock

Recommendations

For optimal performance, use high-quality SDI cables such as Belden 1694A. The converter supports cable lengths up to 300m for SD-SDI, 150m for HD-SDI, and 80m for 3G-SDI. Ensure proper ventilation and avoid exposure to extreme temperatures.

Specifications
Brand
Gefen
Category
Video Converters
Connectivity technology
Wired
DC-in jack
Yes
EAN
888814797275
Ethernet LAN (RJ-45) ports
0
Ethernet LAN data rates
270, 1485, 2970 Mbit/s
Input current
1 A
Input voltage
5 V
Internal
No
LED indicators
Power, Input Lock, Output Lock
Model
EXT-HD-3G-C
MPN
EXT-HD-3G-C
Networking standards
SMPTE 259M, SMPTE 292M, SMPTE 424M
Operating relative humidity (H-H)
5 - 90 %
Operating temperature (T-T)
0 - 40 °C
Output current
1 A
Output voltage
5 V
Power consumption (max)
5 W
Product colour
Black
Web-based management
No
Weight
0.45 kg
Price history over the last 6 months
Gefen HDMI to 3G-SDI Converter - Video Converter
Current
R5,156
Lowest
R5,100
Highest
R5,268
Change 24H
+R9   +0%
Week
+R57   +1%
Month
+R47   +1%

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