Macworld When Apple released the new MacBook Air last week, it called out three key upgrades: the M3 chip, Wi-Fi 6E, and support for dual external displays. But now that people have gotten to use the new machines, a fourth upgrade has been discovered. As discovered by Max Tech on YouTube, Apple has changed the configuration of the base model’s storage array to include two 128GB NAND chips rather than a single 256GB chip. That means the two drives can process data simultaneously, making for much faster speeds than the M2 model. In Max Tech’s testing, write speeds were more than 30 percent faste…