Used unit, 
Some of the tabs on top of the components are broken, but the units seem to be in good working condition.
Each has 2x PS5000 power supply unit, and 6x BSR5422 HD/SDI POV Transmitter
Rack-mountable

The Telecast Fiber Systems Viper II is a modular, high-performance fiber optic transmission system designed for broadcasting, designed to transport uncompressed HD/SDI video, audio, and data over long distances using single-mode or multimode fiber. It supports WDM/CWDM multiplexing to combine multiple signals onto a single fiber, with modules commonly used for 8-channel audio, NTSC/PAL video, and 5400-series HD/POV camera, such as those listed on eBay.
Key Features and Modules:

GG4/26