The irNetBox-III was released in July 2011.

Like most electronics, set-top boxes have become a lot more powerful over the last couple of years, and so are faster and more responsive. This gives a better user experience, but places additional requirements on test/control hardware, which in the case if the irNetBox means that each output IR channel needs to be able to output IR signals at full speed. Previous irNetBox versions could generate one IR signal at a time, whereas the irNetBox-III can generate 16 different signals at the same time. This gives it a throughput of greater than 80 IR signals per second (dependant on the IR signal type).

In addition to being able to output 16 different IR signals simultaneously, the other main changes are:

• Each output has 100 different power levels, in the approximate range of 0 to 100mA IR LED drive current.
• Includes built in hardware for self-test functionality.
• IR emitters can also be connected via a 25-way D-type connecter rather than jack sockets if using in a custom wiring harnesses.

The new design is based on the XMOS quad-core XS1-G4, which is capable of delivering up to 1600MIPS. Each core can run multiple threads in a deterministic way, so allowing allocation of a guaranteed amount of processing power to signal generation for each IR output port, however many ports are being used at any point in time.