Quad-Split 3G/HD/SD-SDI to SD-SDI and Composite Multiviewer 

The Decimator Quad from Decimator Design is a low-cost, standard definition multiviewer. Features of the Decimator-Quad include:

4 independent 3G/HD/SD-SDI inputs with auto detection (26 formats)
Output either PAL or NTSC or SD-SDI
independent quadrants allowing synchronous display of any format/frame rate
Simultaneous display for variable aspect ratios per quadrant
low latency buffering allowing for non-synchronous inputs
control on-unit using the dip switch and rotary
The unit comes with a Locking DC Power Supply & Mounting Bracket. Warranty for all Decimator Design products is 3 years.

Decimator Quad