SmallRig Cage for Sony FX30 / FX3 4183B is designed to protect camera and provide accessory mounting points. The modular cage consists of a Nato rail and a U-shaped cage. The Nato rail is secured on the top via two 1/4""-20 screws and removed to allow installing the original Xlr top handle the U-shaped cage is fixed via 1/4""-20 screws on both sides and at the bottom to prevent twisting, with a cushion against scratches. At the battery door there is a hinge arm that fits camera curve for improved grip experience for little finger.a dedicated Hdmi cable clamp protects interfaces to ensure stable signal transmission. Among its varied accessory mounts, 1/4""-20 holes support Magic Arm 2070 Arri 3/8""-16 locating holes connect Top Handle 2165C or Monitor Mount 2903B the top Nato rail supports Top Handle 3322, and the left one, Side Handle 2187B 1/4""-20 locating holes at the top-left quarter and on the left side attach Rod Clamp 3598 for follow focus two 1/4""-20 holes on the right side allow being securely mounted onto a quick release plate for vertical shooting the cold shoe mount supports microphone, Led light and the Qd port at the bottom fits Qd strap.An Arca-Swiss quick release plate at the bottom can attach Dji Rs 2 / Rsc 2 / Rs 3 / Rs 3 Pro directly or quick release plate (height increase pad) for Dji Rs 2 / Rsc 2 gimbal and Arca-Type Quick Release Plate 3154. Both sides and the bottom have holes for Hand Strap 3848 and Shoulder Strap PSC2428. A magnetic spanner is also included for easy assembly and disassembly..