Designed as an HDBaseT extender and control system, Arista's 1RU rackmount RS-121-A07-RX (receiver). Featuring modular design, the RS-121 was developed to minimize installation time and effort while providing a significant maintenance advantage by way of its ability to swap the transmitter, receiver, or computer modules rapidly. The RS-121-A07-RX receiver employs Arista's ARD-1006-A07-RX HDBaseT receiver module. It features a four port USB 2.0 hub and a 2-port 10/100 Ethernet pass through hub, plus an RS-232 port and IR control.