Atomos Video Recorders. You can also convert HDMI to SDI and SDI to HDMI video using the CONNECT module. Atomos Ninja 5.2 4K HDMI Recording Monitor.
Atomos Ninja V+ 5 8K HDMI H.265 Raw Recording Monitor
Atomos Ninja 5.2” 4K HDMI Recording Monitor by Atomos at B&C Camera
Atomos 5-inch Accessory Kit II - AO-ATOMACCKT4
Atomos Ninja 5.2 4K HDMI Recording Monitor : Electronics
Atomos Ninja 5-inch, 1000nit HDR Monitor-Recorder for DSLR and Mirrorl - Videoguys
Atomos Ninja, 5-inch, 1000nit HDR monitor-recorder for DSLR and mirrorless cameras - Portable Video Monitors
Atomos Shinobi 7 INCH 4K HDMI/SDI Monitor - ATOMSHB002
Atomos Ninja 5.2″ 4K HDMI Recording Monitor – Design Info
Atomos Ninja 5.2 4K HDMI Recording Monitor
Atomos NINJA 5.2 Inch 1000nit HDR HDMI 4K60 On-Camera Monitor/Recorder with AtomOS 11 for DSLR & Mirrorless Cameras