This is a universal adapter that converts a laptop charger from a general-purpose thin pin to a different plug. The diameter is shown in the second photo, but please check in advance to make sure it fits your intended use (the diameter of the laptop you want to plug it into). It is compatible with a wide range of laptops, including Lenovo/hp/SONY (VAIO)/Fujitsu tablets/mouse, etc. The original AC adapter can be a general-purpose AC adapter from Fujitsu, NEC, DELTA, Lenovo (thin pin type), etc. Different currents are acceptable, but please be careful as using a different voltage may cause damage. No individual sales, and no price reductions. There are 3 in stock, so the price shown is for one, but 2 pieces: 1300 yen 3 pieces: 1800 yen are available.