Apple MFi adds USB-C port and Lightning to 3.5mm patch cord

Apple has recently expanded its MFi (Made for iPhone/iPad/iPod) licensing program to include support for USB-C ports and Lightning-to-3.5mm audio cables. This update marks a significant shift in how third-party accessories can interact with Apple devices, especially with the growing adoption of USB-C across the ecosystem. Under the new specifications, accessory manufacturers will now be able to integrate USB-C ports into MFi-certified charging solutions for both iOS and Mac devices. This means that users can now use the same USB-C cable that comes with newer MacBooks to charge their iPhones or iPads, as long as the accessories are MFi-certified. However, it's important to note that the USB-C port on these accessories won't support "passthrough charging," which allows a device to charge while also powering another connected device. This feature is still limited to Lightning ports. Additionally, Apple has clarified that the USB-C port on MFi-certified accessories cannot be used for syncing iOS devices. Instead, the port is intended for charging external devices like speakers or power banks. This restriction highlights the company’s ongoing control over how its ecosystem operates, even with third-party hardware. On the other hand, the inclusion of the Lightning-to-3.5mm patch cord in the MFi program simplifies the process of connecting wired headphones or audio equipment. Previously, users had to rely on a separate adapter to use 3.5mm jacks with their Lightning-enabled devices. Now, this cable can be officially certified, ensuring better compatibility and reliability. In addition to these updates, Apple has also redesigned its MFi logo. The new version features the San Francisco font, which is Apple’s default typeface, and replaces custom device icons with more standardized Apple logos. This change not only aligns the MFi branding with Apple’s overall design language but also makes it easier for consumers to recognize certified accessories. Overall, these updates reflect Apple’s continued effort to streamline and standardize its accessory ecosystem while maintaining tight control over user experience and compatibility. Whether you're a developer, manufacturer, or end-user, these changes are worth keeping an eye on as they shape the future of MFi-certified products.

Precision Machining Parts

Diamond turning and diamond boring
Both diamond turning and diamond boring are performed with polycrystalline diamond tools.
honing
Honing is to use the oil stone (also called honing bar) inlaid on the honing head to finish the hole.
grinding
Grinding is the use of coated or pressed abrasive particles embedded in the grinding tool, through the grinding tool and workpiece in a certain pressure of the relative movement of the surface for finishing processing.
superfinishing
Ultra-finishing is the finishing of the finished surface by using fine-grained whetstone mounted on the vibrating head.
Abrasive belt grinding
Belt grinding is the grinding of workpiece surface with high-speed annular belt.
Mirror grinding
Mirror surface grinding is a grinding method to achieve the optimum surface roughness. After grinding the workpiece, the surface roughness is not more than 0.01 micron, the light is like a mirror, can be clear imaging

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