The Hi5-4K-Plus converts 3G-SDI to HDMI 2.0 with resolutions up to 4K60, taking four 3G-SDI inputs down to a single HDMI 2.0 output for monitoring professional 4:4:4 workflows. It supports HDR10 and HLG, and carries up to eight channels of embedded audio over HDMI, holding sync throughout. AJA's Mini-Matrix app (iOS) is a searchable product catalogue rather than a configuration tool; the converter itself is configured via USB using Mini-Config software on macOS or Windows, and it takes D-Tap or universal power in a durable, compact form. As a 3G-SDI converter it sits below AJA's 12G-SDI Hi5 range, aimed at workflows that don't need 6G/12G-SDI input.