The ink is a relatively decent compatible ink with all the things that connect to compatible ones (slightly lower performance in quality and quantity). There is no significant difference from the other compatible inks and the MOST IMPORTANT thing that applies to almost all compatible ones is that with the latest upgrade, HP has locked non-genuine inks, resulting in an ERROR "non hp chip detected". The only way to solve the problem is through a USB downgrade. You will find many guides and videos on the internet. But is it worth it? For me, the answer is simple: The machine costs: €280.00, genuine inks: €165.00, and compatible inks: €37.00. Which means I save about €130.00/change, so in 2-3 changes, I have a benefit greater than the value of the machine, always with the risk that accompanies this choice. For me, it's a one-way street, but everyone operates as they see fit.

I installed it on the HP OfficeJet Pro 7740 and it worked great. HOWEVER, you need to have downgraded to an older firmware