DC cable connector diameter (d) is 2.1mm, diameter (D) is 5.5mm, thickness (B) is 10mm. 36W power adapter features: product size: 83 * 43.5 * 39.5mm, safety performance, high reliability, safety in accordance with the application of safety certification standards and procedures for production. are used genuine genuine electronic components, circuit boards with over voltage, overcurrent, short circuit protection. with green power IC program, low power design, static power consumption is minimal, low heat. full load high temperature burner, 100% by 4 hours strict aging test, low rate of bad.