The SYSTEMA SD7140S is a dual 28" arm combination attached to a 15.7" post. This solution is part of the SYSTEMA modular range and consists of the following individual components 1 x SP40S post and 2 x SA71S display arms. Ideal for Displays up to 34” in landscape or portrait orientation. The two 28" arms can be installed in a back-to-back or side-by-side configuration in any two of the four channels on the 15.7" high post. The extended arm reach allows for greater cockpit angles, larger screen sizes and increased display reach. Perfect for Multi-user environments and Activity-based workplaces. Touch screen compatible.