Blackmagic Design Spares - URSA Mini Range - SDI BNC Protective Plastic Plate

This specific component is an OEM internal/external cosmetic and protective spare part for the Blackmagic Design URSA Mini camera family (including the original 4K/4.6K, URSA Mini Pro, G2, and 12K).

It is the shaped plastic cover bezel that sits flat against the rear-right I/O panel of the camera body. It surrounds the 12G-SDI In and Out ports, providing structural alignment, keeping dirt from slipping inside the magnesium chassis, and absorbing minor impacts so that horizontal shearing forces hit the replaceable plastic rather than snapping the sensitive PCB-mounted BNC connectors.

Key Information for Sourcing and Installation

• Official Spare Part Sourcing: Blackmagic Design treats internal trim pieces, bezels, and body panels as unlisted repair parts rather than off-the-shelf accessories. They do not assign standard public retail SKUs to these. To buy one, you typically need to contact an Authorized Blackmagic Design Repair Center or submit a ticket directly through the BMD Support portal requesting the part from their internal inventory.

• Component Function: The plate acts as a physical barrier. If a heavy right-angle BNC cable gets yanked sideways, this plate distributes the leverage across the camera's outer casing rather than focusing all the stress onto the internal video board joints.

• Installation Warning: To replace a cracked or missing plate, you must gently remove the surrounding rear chassis screws. Be extremely cautious when lifting sections near the SDI ports—the internal coaxial ribbon cables connecting the rear SDI board to the main processing brain are delicate and have very little slack.

Universal Camera Compatibility Matrix

This protective plastic plate shares the same molding profile across the entire first and second-generation URSA Mini sub-ranges, meaning a single spare part covers a wide fleet of bodies:

Alternative Field Solutions (If Unavailable)

If your plate is missing or smashed and you have an immediate shoot where you cannot wait for an OEM replacement backorder, the industry utilizes two workarounds:

1. Third-Party Full-Cage Plates: Left-side or wrap-around accessory cages from manufacturers like Tilta, SmallRig, or Wooden Camera feature integrated metal breakout protectors. These screw directly into the 1/4"-20 chassis points and clamp tightly over your attached BNC cables, bypassing the need for the flush plastic panel.

2. 3D Printed Replicas: Because this is a non-electrical cosmetic plate, open-source 3D CAD models of the URSA Mini chassis panels are widely shared on engineering forums (like Thingiverse). A high-resolution STL print using reinforced ABS or PETG plastic matches the protective tolerances of the injection-molded original.