The SmallRig holder for portable power supplies BUB2336 is designed to attach a power supply to camera equipment when a sustainable charging solution is needed. It accommodates power supplies with a width of 53 mm to 87 mm, covering most products on the market. There are 1/4''-20 threaded holes on the top, bottom, and back of the holder, allowing it to be conveniently mounted in various locations. For example, you can attach it to the front of the SmallRig top handle 1638, the SmallRig dual rod clamp 942, the SmallRig ball head arm 2070, or the SmallRig cages. The holder is lined with soft rubber protective pads on the inside, which securely hold the power supply in place and prevent scratches.