There's no way that there's the same amount of ink in these things as the OEM versions. Two cartridges in a row died long before they hit the supposed page count. Also, printer showed them as being half full still.
PROS: Cheap! Well, cheaper than OEM that's for sure.
I will forever regret the day that I tried to save money and bought ink cartridges from Monoprice instead of OEM cartridges. In February of this year I was lured into buying 12 cartridges with a sale price. I like to have replacement cartridges available when I run out of ink. Monday night, for the second time, a Monoprice cartridge was not recognized by my Lexmark printer. My daughter had a paper due at school today. The printer needs ink and my ink won't work. When this happend previously Monoprice was great about sending me a replacement but an RMA doesn't help when I need ink now. I'm pretty sure that I'm too late for an RMA now. Either way, I will not order anymore of these unreliable print cartridges.