The 5K Retina 27-inch iMacs updated yesterday can now support higher quantities of RAM than Apple currently supplies, it has been revealed. The refreshed high-resolution Macs now include four memory slots, allowing it to use up to 64GB of RAM by filling the iMac up with four 16GB RAM modules, double what the previous models were able to accept, and also twice as much as Apple itself offers via its online store when performed as an aftermarket upgrade.
