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Connector Type
VGA Connectors
Ease of Installation
Beginner (Installs < 10 minutes)
Radio Design Labs
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Flexible Distribution Amp for Selecting and Distributing Monitor Signals
Radio Design Labs EZ-VMD4E VGA/XGA Equalized Distribution Amp, 2x4
Radio Design Labs EZ-VMD4E VGA/XGA Equalized Distribution Amp, 2x4
Radio Design Labs EZ-VMD4E VGA/XGA Equalized Distribution Amp, 2x4
Item# 77972
Price: Normally $255.87 
Hot Deal $172.23
Free shipping on orders over $50 - See Details


  • All selector switches easily accessible on front panel
  • Inputs and outputs on HD15 female connectors
  • Two front-panel switch-selectable inputs
  • Wide RGB bandwidth > 400 MHz loaded
  • High resolution compatibility VGA through QXGA
  • Solid-state switching of video and sync signals
  • Reliable full-size switches for switched functions

Essential Info

The EZ-VM24E is a high-resolution computer video source selector and distribution amplifier with two inputs and four outputs. A front-panel switch selects between the inputs. Each input has an associated BIT ID switch to assure compatibility with various computers. The sync for input 1 is front-panel switch-selectable between standard TTL or video. One of the two outputs is individually buffered for driving the computer monitor. The other three outputs are driven by separate output amplifiers that include rear-panel gain and equalization trimmers that provide adjustable compensation for quality monitor cable lengths exceeding 100m (300 feet). All switched functions are easily accessible on the front panel. Input switching is fully solid state for long-term reliable immunity from switch noise and the bandwidth limitations of mechanical switches.


What's Included

  • EZ-VMD4E unit
  • Power supply
  • More Info

  • Front-Panel ID Bit Selection for Each Input
  • DC RGB Coupling, Output Polarity & Offset Follow Input
  • Rear-Panel GAIN and EQ Peaking Trimmers
  • HD15 Input Cable Included - 36¨, 91.44 cm long
  • Separate video line driver amplifiers for the LOCAL MONITOR and the three MONITOR outputs
  • Specifications

    • Inputs (2): VGA - QXGA RGBHV or RGB with combined sync
    • Outputs (4): LOCAL MONITOR (1, Buffered, ID bit pass-thru to INPUT 1), Monitor (3, with GAIN and EQ trim)
    • Gain: Unity (LOCAL MONITOR output), Unity to +6 dB (Monitor outputs)
    • Equalization (peaking): None (LOCAL MONITOR output), Adjustable 0 to +8 dB at 100 MHz (Monitor outputs)
    • Video bandwidth> 470 MHzVideo impedance: 75 O (Input and output)
    • Sync (HV) input: 500 O TTL or 75 O Video (Switch-selectable), 0.7 V to 5 V p-p
    • Sync (HV) output: 5V TTLSync (HV) Propogation delay:< 4 nS typ.
    • Sync (HV) Rise time: < 4 nS typ.
    • Sync (combined): Output follows input
    • Bit Control: Switch-selectable (individual selector per input, pin 4, over-rides LOCAL MONITOR jack ID bit pass-thru)
    • 24 Vdc power supply current: 70 mA (idle), 90 mA (max.)
    • Case dimensions: 5.75” (14.6 cm)W x 5” (12.7 cm)D
    • Mounting size: 1/3 rack width


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