Yes, 4 months old. But how many are actually out in use at this time? I do know there was a long delay from time the problem was figured and they were suposedly "available" and when people with RMAs actually started getting them. And RMA numbers compared to general sales is much less as well. Are the "revision" models all that are now being sold? Probably not, so how many of the old models are still setting on shelves waiting to sell?
I do understand the economics of having to recall a defective product. It's very expensive and kills cash flow. But Corsair should have bit the bullet and at least offered free advanced replacement to any and all who had defective Hydro series systems.. And by free I mean from buyer's door. Instead buyers have had to pay out of pocket, wait months, not receive timely updates as to what is happening, even received calls in middle of the night. Sorry. Corsair is on my poo list. I and don't see them rising above the smell in my lifetime.
And it's not just their Hydro coolers. They advertised the TX550/650/750 as having "Ultra quiet fan" and you can hear them from across the room! And I'm not the only one saying it either.