1. Built-In Intelligent Controller, Manual Control of light effect. Need to be used with a motherboard that supports 5V ARGB 2. When the motherboard does not have a 5V ARGB sync pin, use the attached power cable to connect to the power interface to achieve automatic rainbow light effect. 3. You can purchase a 5V ARGB 3-pin controller, manual control of multiple preset light effects can be realized. Colour:Black Material:Plastic Type:For 24P or 3X8P Package Contents: 1x Motherboard graphics card neon line Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.