Not so long ago, we released an SSD upgrade kit for MacBooks Air / Pro with up to 960GB capacity, from Transcend. Because the guys are back, but now with something much simpler for those who don't want to venture into opening the machine: JetDrive Lite Expansion Cards.
Cards that are waterproof, dirt and impacts! provide up to 128GB of extra space for storage in a practical way. Just pop it in the SDXC card slot of MacBooks Air and Pro with Retina display and leave it there. It is worth noting that the 13-inch model of the MacBook Pro Retina is limited to a 64GB card.
The cards have read and write speeds of up to 95MB / s and 60MB / s respectively, and cost US $ 50 (64GB) and US $ 100 (128GB).