The DS55LT4 and DS55LT6 feature a narrow 11.5 mm bezel for tiled video wall applications. With built-in video daisy chaining, a single 1080p source can be used on video walls up to 6×6 in size without the need for any additional external video wall controller.
The DS55LT4 also utilizes a fanless thermal management system where heat is radiated away from high temperature areas while a sensor continuously monitors the internal temperature to protect the system from overheating. All of this is done without the use of any fans, resulting in silent operation and greatly reducing the potential of mechanical failure.
All the specs are here: http://www.dynascanusa.com/ds2_products.html