Price is for 1, 4 are available. Units are in tested and working condition and removed from a working production environment. No functional issues. Includes Powercon Cable. Units are in good functional condition but are not in perfect cosmetic condition. Please review photos to assess cosmetic condition, as these are the exact units for sale. I attempted to get photos of each screen but with my shop lighting there is some glare. All the screens look excellent in person. Photos 1-12 Are units 1 and 2, and photos 13-24 are units 3 and 4. If you dont see photos 13-24 they will be added later today :) 

Unlike other sellers I offer a return policy and specialize in Pro Audio and lighting so you can buy with confidence.

Units will be shipped insured and with signature confirmation. 

From the manufacturer: 

The MA NPU (Network Processing Unit) unites the calculation power in the network and offers the same performance as the grandMA2 consoles. The MA NPU offers and handles 4,096 parameters.

With an easy to read touchscreen the MA NPU allows intuitive use and easy access to all the important information. 8 x DMX XLR 5-pin connectors on the rear side of the MA NPU allow a most flexible use within the network environment.

The MA NPU is the link between Ethernet and DMX controlled devices. The MA NPU adds processing power and parameters to the MA system. For decentralized DMX networks, the MA NPU converts incoming Ethernet data into DMX data. The converted data are transmitted via 8 independent DMX connectors, which can be configured as DMX inputs or outputs.

Within a network, several grandMA2 consoles share the available MA NPU devices. For parameter expansion the MA NPU shall be located in a centralized position, whereas MA xPort Nodes are used to distribute and output DMX data.This allows DMX devices being used by several consoles together, and it provides a redundant mode of operation without additional components such as DMX mergers.