Features: 1. Compact size, lightweight, low insertion loss, frequency can be customized. 2. Gold-plated SMA connectors on both sides (one side is SMA female connector with external thread and inner hole; the other side is SMA male connector with internal thread and center pin), double-sided PCB design, high mechanical strength, and stable electrical performance. 3. Excellent passband ripple coefficient and out-of-band suppression capability. 4. Unique shielding design, durable and practical. 5. Surface mount components, durable with zero failure rate. Designed for FPV aerial photography drones and similar applications. 1.4 GHz low-pass filter. Effectively reduces interference from 1.2 GHz video transmission on 2.4 GHz equipment (such as 2.4 GHz remote control receivers) and helps extend control range. When connected to a 1.2 GHz video transmitter, it significantly reduces frequency interference above 1.4 GHz. Recommended for setups using 1.2 GHz video transmission and 2.4 GHz remote control receivers. Under the same conditions, 1.2 GHz video transmission offers greater transmission distance and better signal penetration compared to 2.4 GHz and 5.8 GHz systems, making it ideal for long-range and complex environment operations. Note: This filter is intended for use with video transmission frequencies up to 1.4 GHz only. It is not compatible with 2.4 GHz or 5.8 GHz video transmission systems. Due to manufacturing variations, product appearance, color, and printed markings may vary slightly between batches. These differences do not affect performance. Size: 35mm x 7mm x 6.5mm Material: Metal Color: Silver + Gold Package Contents: 1 x Low Pass Filter Note: Lighting and display settings may cause slight color variations between the product image and the actual item. Measurement tolerance: +/- 1-3 cm.