FOR-A’s expanded MFR series of routing switchers includes the MFR-4000 12G-SDI supported routing switchers, the existing MFR-3000, MFR-5000, and MFR-8000. The new MFR-4000 12G-SDI routing switcher enables matrices of 72x72 inputs and outputs for efficient single-wire 4K routing. The MFR-3000 can be configured up to 64x64, the MFR-5000 with up to 128x128, and the MFR-8000 with up to 256x256--now available with Gearbox technology. In 4K mode, the MFR-3000 is capable of matrices up to 16x16, the MFR-5000 of up to 32x32, and the MFR-8000 up to 64x64. Many of the MFR series matrix support optional support versatile core system components like RS-422, analog audio and AES audio interface routing. The MFR routers are team players with other FOR-A devices such as tally connections with peripherals (such as video switchers or multi-viewers).