What are the differences between compatible and OEM cartridges? Why would you want to purchase a compatible cartridge? The final purchase decision will not only be made on the price but also on the specific needs of the buyer. Star Cartridge will offer you the best quality Cartridge and you will surely get 100% guaranteed products. You can buy a real ink Cartridge from us. These are usually peripherals that are manufactured by the printer manufacturer such as Dell, Lexmark, Canon or Epson to name a few. The advantage of buying these printer cartridges is that the printing quality is considered to be the best.