ITEM NAME:10 Packs DC 4.0x1.7mm Female to 5.5x2.1mm Male DC Power Jack Adapter Sockets - Description: Firm and Stable Contacting - The DC Male head has Two contacting clips on the inner wall. Female 4.0x1.7mm Socket - The female DC socket has an outer connecting wall of 4.0mm diameter and an inner connecting wall of 2.1mm diameter. User-Friendly Interface - Allows the operator to complete the insertion operation without any hassle and effort and expertise. Extensive Compatibility - Supporting a versatility of devices with 5.5x2.1mm plug socket. Manufactured in strict accordance with high standards, providing a stable and reliable power connection. Specification: Material: Metal & Plastic Product Length: 41mm/1.61inches Color: Black Package Includes: 10 Pieces Socket Adapter Note: The color might be slightly different due to the color calibration of each individual monitor. Please allow slight measuring deviation due to manual measurement/margin tolerance. Thanks for your understanding and attention. Wish you could have a pleasant shopping experience! SKU: FUZ0011635668014945.User-Friendly Interface - Allows the operator to complete the insertion operation without any hassle and effort and expertise. 10 Pieces Socket Adapter. Extensive Compatibility - Supporting a versatility of devices with 5.5x2.1mm plug socket.