Check the listing for details. LOT DC/AC Power Charger Converter Adapter Cable 7.4mm To 4.5mm For HP/Dell. Color: Black, Condition: New. Listed at 12.88 USD. This is Brand New and High Quality product which can convert round connector to square connector. It is 7.4mm X 5.0mm Round Jack (old type) to 4.5mm x 3.0mm Plug End (new type) Adapter Pigtail. Color: Black cable with small Tips Fast shipping from US. TYPE1: 7.4mm/F TO 4.5mm/M For Dell Length: 15cm【0.5FT (6")】 Compatible with: For Dell small Tips TYPE2: 7.4mm/F TO 4.5mm/M For Dell Length: 30cm【1FT 】 Compatible with: For Dell small Tips TYPE3: 7.4mm To 4.5mm For HP Length:17cm (6.6") Compatible Model For HP Blue Tips and other future laptops which DC input port is 4.5mm x 3.0mm Package Includes: 10-100x Power converter Cable Adapters （Optional） Note: The main function of the product is interface conversion, please check whether the voltage and current of the equipment at both ends are consistent before purchasing. On Jul 23, 2024 at 22:54:26 PDT, seller added the following information:This is Brand New and High Quality product which can convert round connector to square connector. It is 7.4mm X 5.0mm Round Jack (old type) to 4.5mm x 3.0mm Plug End (new type) Adapter Pigtail. Color: Black cable with small Tips Fast shipping from US. TYPE1: 7.4mm/F TO 4.5mm/M For Dell Length: 15cm【0.5FT (6")】 Compatible with: For Dell small Tips TYPE2: 7.4mm/F TO 4.5mm/M For Dell Length: 30cm【1FT 】 Compatible with: For Dell small Tips TYPE3: 7.4mm To 4.5mm For HP Length:17cm (6.6") Compatible Model For HP Blue Tips and other future laptops which DC input port is 4.5mm x 3.0mm Package Includes: 10-100x Power converter Cable Adapters （Optional） Note: The main function of the product is interface conversion, please check whether the voltage and current of the equipment at both ends are consistent before purchasing. On Jul 23, 2024 at 22:54:26 PDT, seller added the following information: