Apple pioneered the use of mSATA form factor based SSDs in ultra thin and light laptops with launch of MacBook Air in 2010. Now the rumors are Apple will leave mSATA behind in the upcoming MacBook Air update and use the faster “Toggle DDR 2.0” interface. According to Macotakara, Asian electronic component markers are reporting that Apple will adopt 400Mbps Toggle DDR 2.0 interface.

By using Toggle DDR 2.0 interface in place of mSATA, Apple will be able to solder NAND flash memory directly on the motherboard decreasing the overall size of the setup. Also, Apple will use 19-20nm flash memory chips, which are smaller and faster than the 30nm NAND chips used in current MacBook Air.

The new setup will be like smartphones, where the NAND Flash memory is soldered directly on the circuit board. And, it will not be removable or user replaceable like the current MacBook Air Blade X-gale SSD (mSATA) setup. By doing this Apple will decrease the size by almost 60% and double the performance.