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Apple's rumored 18W USB-C adapter might not be sold separately at launch

Apple is rumored to debut a high-power 18W USB-C compliant power adapter alongside new iPhone models later this year, but supply constraints might restrict the part to in-the-box bundles until 2019.

USB-C Adapter



Citing supply chain sources, Japanese blog Mac Otakara on Tuesday reports orders for packaged components will put factories earmarked to produce the part at full capacity. As such, the 18W adapter is unlikely to show up at Apple stores as standalone accessories, at least this year.

Apple tapped Flextronics, Delta Electronics, Lite-On Technology, Artesyn and other minor suppliers to manufacture the part, the report said.

In addition, third-party USB-C to Lightning cables will also be unavailable until 2019, as the new Lightning chip, dubbed "C48B," is expected to enter the MFi program in November or December. Further complicating matters, only four MFi-certified manufacturing plants have been approved to produce the part.

Word of the 18W USB-C adapter surfaced in May when a sketchy report offered details on a European version of the accessory, complete with prototype renders from a supplier source. More recently, however, photographs of what is claimed to be an engineering sample popped up on a Chinese website, lending credence to earlier rumblings.

Markings on the device suggest power output stands at 5 volts at 3 amps, or 9V at 2A, meaning a total of 15 Watts are delivered to iPhone.

Current iPhones ship with a 5W USB-A to Lightning charger, though Apple's latest iPhone 8, iPhone 8 Plus and iPhone X support fast charging via a USB-C to Lightning cable and higher wattage charger. Using the USB-C adapter supplied with certain MacBook models, current generation iPhones can charge to 50 percent capacity in about 30 minutes.