This is an original HP 201A yellow toner cartridge. An original toner is a brand new toner cartridge which has been made by HP.
The 201A yellow toner can produce up to 1,400 pages of bright and deep yellow shades before it will needs to be replaced.
The cartridge has its very own drum attached to it, this is part that prints the toner powder into your design. In other printers the drum is a separate part you replace less often but with the 201A yellow toner you'll get a new drum each time you replace the toner. This means your printer is being maintained as often as possible and your prints are being kept at the best quality.