PLEX is a very popular EVE Online's currency which can be used to purchase Omega game time or traded on the market for other currencies like ISK or Items. PLEX can be also bought from the official in-game store, however, it tends to be cheaper when bought from other players on Odealo. You can buy EVE PLEX from other players with the use of real money on Odealo where it's offered for sale by several reliable sellers. Odealo allows its users to buy, sell, and trade PLEX and secure each transaction between its users. If you want to extend your premium game time in EVE Online, make sure to check out this page.