A normal USB 3.0 connector is blue inside, and has both sets of pins for backward compatibility (five in the rear, four in the front) like the one shown here. A USB 3.0 connection requires five ...

and there is a new sky blue variant available as of today, which can be purchased standalone. The USB-C to ‌MagSafe‌ 3 cable is two meters in length and it allows the ‌MacBook Air‌ to be ...

However, even if you have no plans to buy the new M4 MacBook Air, you can still get a sky blue USB-C to MagSafe 3 cable. Apple’s USB-C to MagSafe 3 cable now available in a new color The new sky ...

Companies continue to experiment with numerous designs. For example, when red, green and blue LEDs are combined, they produce white light. Another method uses a blue LED and yellow or red phosphors.

More information: Qianqian Wu et al, Homogeneous ZnSeTeS quantum dots for efficient and stable pure-blue LEDs, Nature (2025). DOI: 10.1038/s41586-025-08645-4 Journal information: Nature ...