We have a new printer and the ink we had is not compatible.
I have 3 opened cartriges ( 2 tri coloured one black ) to give away and 2 brand new unopened ( one tri coloured, one black ) to sell at £5 each.
They are hp 300 CC643E and 640E
It seems a shame to throw them away when they may be useful to someone. Printer ink is not a cheap commodity.