I just ordered the new Mac mini and went for the standard 8GB version. I plan to buy 32GB 2666 MHZ DDR4 RAM and then got asked what PIN count I wanted, with 240 and 260 being options. Any thoughts as to which it should be? Your thoughts on brand would be very helpful too! UPDATE: 10/11/18 I have received my Mac Mini and installed the memory and the upgrade was really worth it. It's not as simple as the previous Mac Mini, but it didn't take longer than 15mins to do. I ordered 2 x 16GB Corsair sticks and these worked a charm. The screwdrivers needed are: TR6 hexagonal - note this is the security one with a hole in the centre. Used for most screws. T5 hexagonal - used for the ram cage T10 Hexagonal - used to remove the motherboard It sounds more complex than it actually is. Hope this was helpful.