Atlona AT-APC21A

2X1 VGA auto-switch

Atlona AT-APC21A is a high performance, signal sensing VGA switcher.
List Price(excl. BTW) €179.99



Atlona AT-APC21A is a high performance, signal sensing VGA switcher. Simply senses the presence of a video signal and automatically switches to the active VGA source to be routed to a display. The automatic selection of the active channel eliminates the need of manual control. However, a manual control button is also available to switch between desired channels. Switcher supports 350 MHz bandwidth with maximum VGA resolutions up to 2048x1536. Atlona AT-APC21A is also equipped with analog audio connections to transfer audio signal from either source to a display or audio receiver. Built in magnetic pad attaches unit to metallic surfaces for easy installation.

User Instructions:
Connect the desired VGA monitor and speaker to the output of the AT-APC21A and two VGA + Audio sources to the corresponding inputs. The LED display on the switch panel will turn on when the switch detects a VGA signal and the external control button is available for manual switching. We recommend using high quality VGA cables for the best signal transfer.


  • Switch between two VGA w/Audio sources to a single monitor and set of speakers
  • No software required
  • Supports VGA, XGA, SVGA, SXGA, UXGA, WUXGA, Multi-Sync and TFT-LCD monitors.
  • Supports stereo audio
  • Auto detect monitor type and DDC2B signal for each port
  • Supports 350 MHz bandwidth with maximum VGA resolution of 2048x1536.
  • Video enhancement to extend quality video up to 30 meters
  • Auto switch to new connected VGA channel (Auto Detect & Select)
  • Optional external control button for manual selection
  • Dual color LED to indicate active channel status
  • Power-free, electronic design to protect connected devices
  • Magnetic pad for ease of installation


  • Channel Select Method: Auto Detection
  • Connector Input: Two sets of HDB-15 (female) & 3.5 mm audio jack
  • Connector Output: One set of HDB-15 (female) & 3.5 mm audio jack
  • Signal Type: VGA, XGA, SVGA, UXGA, WUXGA, Multi-Sync, TFT-LCD Monitor
  • Video Bandwidth: 450 MHz
  • Maximum VGA Resolution: 2048x1536
  • Power Supply: Taken from VGA signal or DC 5V power adapter (sold separately)
  • LED Display: Blue for Channel 1; Green for Channel 2
  • Casing: Metal with Magnetic Pad
  • Dimensions (L x W x H in inch): 4.44 x 2.44 x 1.14
  • Dimensions (L x W x H in mm): 113 x 62 x 29
  • Operating Temperature: 0° C to 50° C
  • Storage Temperature: 0° C to 60° C
  • Humidity: 25% to 75% Non-Condensing

Package Includes:

  • Atlona AT-APC21A 2x1 Signal Sensing Automatic VGA Switcher w/Analog Audio
  • Wired manual selector
  • User Manual

Additional Information

Switch type N/A
Length N/A
mamut_mainsupplier No
Link manufacturer Product page manufacturer
Input VGA, Audio
Output VGA, Audio
Dealer Price No