AJA Video Systems today announced a host of new Mini-Converters, powerful and portable devices that harness AJA’s proven technology for more flexible and extensible digital video workflows. The newly announced FiDO-4T-ST and FiDO-4R-ST enable quad-channel SDI to ST Fiber and ST Fiber to SDI, enabling Fiber transmission of 4K and UltraHD signals, and HA5-4K converts UltraHD/HD HDMI to 4x 3G-SDI.