Feature: 1. All female sockets are 5.5x2.1mm, and the tip of each connector can be inserted into a 5.5x2.1mm male connector, such as a laptop power supply and AC adapter. 2. Widely compatible for Lenovo, for ThinkPad, for Dell, for HP and other notebook computers. It can be adapted to balance bikes, scooters, wheelchairs, lawn mowers and other household appliances. 3. 28pcs universal DC plug power converters, can be used with external laptop DC power batteries or laptop universal AC power adapters to charge portable PCs. 4. DC plug power converter for external power supply and on‑board transformer, practical to use. 5. Compact size, lightweight and portable, which is easy to carry and convenient for using. Specification: Condition: 100% Brand New Item Type: Power Converter Material: ABS Color: As picture shown Female Socket: DC 5.5x2.1 standard interface 28pcs universal 5.5 x 2.1mm/0.2 x 0.1in DC AC power adapter Including: 1 x 7.9 x 5.5mm/0.3 x 0.2in-yellow-for Lenovo IBM Thinkpad 1 x 7.4 x 5.0mm/0.3 x 0.2in-black-suitable for Dell, for HP Compaq Pavilion 1 x 3 Hole for Dell nib-black-for Dell 1 x 5.5 x 1.9mm/0.2 x 0.1in DC-black-for ASUS 1 x 6.0 x 1.4mm/0.24 x 0.06in core pin-black-suitable for Samsung, for Fujitsu, for Sony 1 x 6.3 x 3.0mm/0.25 x 0.01in tuning fork-green-suitable for Toshiba, for Lenovo 1 x 5.5 x 2.5mm/0.22 x 0.1in DC-white-suitable for Lenovo, for Asus, for Acer, for MSI, for BenQ, for Toshiba, for IBM, for Gateway, for Haier 1 x 5.5 x 2.5mm/0.22 x 0.1in tuning fork-black-suitable for ASUS, for Toshiba, for HP, for MSI, for IBM, for Lenovo 1 x 5.5 x 2.1mm/0.22 x 0.08in DC-blue-for Acer, for Toshiba, for HP 1 x 5.5 x 2.1mm/0.22 x 0.08in tuning fork-black-suitable for for HP, for Sega 1 x 5.5 x 1.5mm/0.22 x 0.06in DC-black 1 x 5.5 x 1.7mm/0.22 x 0.07in tuning fork-yellow-suitable for Hasee, for Acer, for Acer, for Lenovo, for Asus, for BenQ, for Toshiba 1 x 5.0 x 2.1mm/0.22 x 0.08in DC-black 1 x 5.0 x 2.5mm/0.2 x 0.1in DC-black 1 x x 5.5 x 2.1mm/0.22 x 0.08in tuning fork-black-suitable for HP, for Sega 1 x 5.5 x 2.5mm/0.22 x 0.1in DC-black-suitable for Lenovo, for Asus, for Acer, for MSI, for BenQ, for HEDY, for Toshiba, for IBM, for Gateway and for Haier 1 x 5.0 x 1.1mm/0.2 x 0.04in core needle-yellow 1 x 4.8 x 1.7mm/0.19 x 0.07in tuning fork-yellow-suitable for for HP Pavilion, for Sony, for Asus Eee, for NEC, for Delta, for Compaq 1 x 4.0 x 1.7mm/0.16 x 0.07in tuning fork-yellow-suitable for Asus, for BenQ, for Acer, for SonyPSP, for HP (mini), for GPS Navigator 1 x 3.5 x 1.35mm/0.14 x 0.05in DC-red-suitable for Fujitsu, for Dell, for Sharp 1 x 4.8 x 1.7mm/0.19 x 0.07in J-CAM-black-suitable for for HP, for Asus, for Lenovo, for NEC, for Delta, for Compaq 1 x 3.0 x 1.1mm/0.12 x 0.04in DC-black-for Samsung 1 x 3.5mm/0.14in mono-suitable for classic radio 1 x 2.5mm/0.1in mono-suitable for audio 1 x 2.5x0.7mm/0.1 x 0.03in tuning fork-yellow-suitable for Dell, for Samsung, for Sharp, power supply, for Android tablet 1 x 2.35 x 0.7mm/0.09 x 0.03in tuning fork-yellow 1 x 2.0 x 0.5mm/0.08 x 0.02in tuning fork-black 1 x 3.5 x 1.1mm/0.14 x 0.04in DC-notebook. Package List: 2 Set of Power Converters (Total of 28pcs)