Features: 90 Degree riight angle 5.5 mm x 2.1 mm for DC Male port to for DC 5.5 x 2.1mm Female port Adapter Connector . Power supply 5 volt ,the adapter is used for small electronics and devices which Use 5.5 mm for DC barrel jack for a power cable. Connector A: for DC 5.5x2.1mm Female Jack (Hole Diameter:5.5mm, Pin Diameter:2.1mm); Connector B: for DC 5.5x2.1mm Male Plug Outside Diameter: 5.5 mm, Inside Diameter:2.1mm). Connect solar equipment, lamps, surveillance cameras, laptops and other devices to provide power for these devices, easy to use. The adapter is suitable for laptop, CCTV surveillance camera, MP3, MP4, led light, Router, Mini Fan, Cable Modem, Hub, photo player, electronic dog, access control Etc. Specifications: Size:approx (3x2.3x1.1cm) Colour:(black) Package Quantity:(2pack) Material:Metal PVC, ABS for Shell. Package Includes: 5 X 90 Degree Angle for DC Charging Cable Connector note: Please make sure the for DC output and tip size of ac adapter are accordant before you bid. Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.