Filled with some of the highest quality pigment-based yellow ink Hewlett Packard have ever produced, each CN630A is capable of an amazing quality of print. The HP 772 yellow and the other colours in this sizable range are a great selection for those that print professionally and need exceptional results.The largest yellow ink cartridge available for any of the compatible large format Hewlett Packard printers, this CN630A keeps your cost per page low, even with this genuine product. With 300ml of yellow ink within each of the Hewlett Packard CN630A cartridges, this is a pretty cost effective product.