These are NOT genuine HP inks but a great alternative premium compatible that prints great for less.
Approx prints:
1 x 940XL Black ink cartridge prints approx 2200 pages
1 x 940XL Cyan ink cartridge prints approx 1400 pages
1 x 940XL Magenta ink cartridge prints approx 1400 pages
1 x 940XL Yellow ink cartridge prints approx 1400 pages
For HP Officejet Pro 8000, 8500, 8500A printers