Be Green Ink Eco Series compatible HP 4050 usb-mac Toner is the best option for your HP 4050 usb-mac printer because you can count on exceptional quality at an affordable price. Be Green Ink Eco Series compatible HP 4050 usb-mac Toner C4127A, C4127X Toner Jumbo Yield 5 Pack Savings is made in an ISO 9001/14001 certified manufacturing facility and is tested prior to packaging to ensure that the print quality is the same as the original brand. Be confident knowing that when you purchase a BGI Eco Series compatible HP 4050 usb-mac Toner you are getting a very high quality compatible cartridge that will perform at the same level as an original cartridge, but at a fraction of the cost.